When De Tocqueville visited our country, he journeyed westward until he stood upon the very frontier of civilization. Before him lay the forests and prairies, stretching for thousands of miles toward the setting sun. But what impressed him most deeply was the civilization behind him, reaching to the Atlantic—a civilization including towns and villages, with free institutions, with schoolroom and church and library. With joy he reflected that the mental and moral harvests behind him were sufficient to sow the vast unconquered land with treasure. Thus each to-day is a frontier line upon which the soul stands. It is the necessity of life for man to journey backward into the past for food and seed with which to sow the unconquered future. For each individual yesterday holds the beginnings of art and architecture. Yesterday holds the beginnings of reform and philanthropy. Yesterday contains the rise and victory of freedom. Yesterday holds the first schoolroom and college and library. Yesterday holds the cross and all its victories over ignorance and sin. Yesterday is a river pouring its rich floods forward, lending majesty and momentum to all man's enterprises. Yesterday is a temple whose high domes and wide walls and flaming altars other hands and hearts have built. For the individual, memory is a granary for mental treasure; and, for the race, civilization is a kind of social memory.

Consider the task laid upon memory. The activity and fruitfulness of the human mind are immeasurable. Reason does not so much weave thoughts as exhale them. Objects march in caravans through the eye gate and the ear gate, each provoking its own train of thought. And the unconscious processes of the mind are of even greater number. The silent songs that genius hears, the invisible pictures that genius paints, the hidden castles that genius builds—no building of a city without can compare for wonder and beauty and richness with the building processes of the soul within. If some angelic reporter could reduce all man's thoughts to physical volume, how vast the book would be! Thoughts do not go single, but march in armies. Feelings and aspirations move like flocks of caroling songsters. Desires swarm forth from the soul like bees from a hive. The soul is a city through whose gates troop innumerable caravans, bearing treasure within, carrying treasure forth without. No Great Eastern ever carried a cargo that was comparable for vastness and richness with that voyaging forward in the mind.

Now the power and skill of God is nowhere more manifest than in this. He has endowed the mind with full power to carry forward all its joys, its friendships and victories. It is given to man to journey in a single summer over that pathway along which the human race has walked. For happiness and culture the traveler lingers by some Runnymede or Marston Moor; stays by castle or cathedral, remains long in gallery or museum. It is the necessity of his body for the traveler to leave the mountain behind him when he returns to the city in the plain. But it is the privilege of the mind to take up these sights and scenes and carry them away as so much treasure made portable by memory. By a secret process mountains and valleys and palaces are reduced in size, photographed and put away ready to be enlarged to the original proportions.

We have already heard of the inventor who planned an engine that laid its track and took it up again while it journeyed forward. But this mechanical dream is literally fulfilled in memory. Grown old and blind, each Milton may pass before his mind all the panorama of the past, to find the events of childhood more helpful in memory than they were in reality. Looking backward, Longfellow reflected that the paths of childhood had lost their roughness; each way was bordered with flowers; sweet songs were in the air; the old home was more beautiful than king's palaces that had opened to his manhood's touch.

Similarly, Dante, storm-beaten, harassed, weary of selfishness, voyaged and traveled into that foreign land that he called "youth." There he hid himself until the storms were passed. For him memory held so much that was bright and beautiful that it became to him a portfolio of engravings, a gallery of pictures, a palace of many chambers. Hidden therein, earth's troubles became as harmless as hail and snow upon tiled castle roofs. Men wonder oft how statesmen and generals and reformers, oppressed beyond endurance, have borne up under their burdens. This is their secret: they have sheltered themselves in the past, found medicines in memory, bathed themselves in old-time scenes that refreshed and cleansed away life's grime. From the chill of arctic enmity, it is given to the soul through memory to rise above the storm and cold and in a moment to enter the tropic atmosphere of noble friendship, where are fragrance and beauty, perpetual warmth and wealth.

It was a favorite principle with Socrates that the lesser man never comprehends the latent strength in his reason or imagination until he witnesses its skill in the greatest. He implies that the eloquence, art, and skill that crown the children of genius exist in rudimentary form in all men. In order, therefore, to understand memory in its ordinary processes, let us consider its functions in those in whom it is unique. Fortunately scholars in every age have preserved important facts concerning the power of recollection. The classic orators contain repeated reference to traveling singers, who could recite the entire Iliad and Odyssey. In his "Declamations," speaking of the inroads disease had made upon him, Seneca remarks that he could speak two thousand words and names in the order read to him, and that one morning he listened to the reading of two hundred verses of poetry, and in the afternoon recited them in their order and without mistake.

Muretus remarks that the stories of Seneca's memory seemed to him almost incredible, until he witnessed a still more marvelous occurrence. The sum of his statement is that at Padua there dwelt a young Corsican, a brilliant and distinguished student of civil law. Having heard of his marvelous faculty of memory a company of gentlemen requested from him an exhibition of his power. Six Venetian noblemen were judges, though there were many other witnesses of the feat. Muretus dictated words, Latin, Greek, barbaric, disconnected and connected, until he wearied himself and the man who wrote them down, and the audience who were present. Afterward the young man repeated the entire list of words in the same order, then backward, then every other word, then every fifth word, etc., and all without error.

Sir William Hamilton says that the librarian for the Grand Duke of Tuscany read every book and pamphlet in his master's library and took a mental photograph of each page. When asked where a certain passage was to be found, he would name the alcove, shelf, book, page containing the passage in question. Scaliger, the scholar, who has been called the most learned man that ever lived, committed the Iliad to memory in three weeks and mastered all the Greek poets in four months. Ben Jonson could repeat all he had ever written and many volumes he had read, as could Niebuhr, the historian. Macaulay believed that he had never forgotten anything he had ever read, seen, or thought. Coleridge tells of an ignorant family servant, who in moments of unconsciousness through fever, recited passages of Greek and Hebrew. The explanation was that the servant had been long in the family of an old clergyman whose habit it was to read aloud the Bible in the originals.

Physicians have noted instances where a foreigner coming to this country at the age of four or five has completely forgotten his native tongue. Grown old and gray, in moments of unconsciousness through fever, the aged man has talked in the forgotten language of infancy. Our best students of mental philosophy believe that no thought or feeling, no enmity or aspiration, is ever forgotten. The sentiments written on clay harden into granite. Dormant memories are not dead. At a touch they return in their old-time power and vigor. Science tells us that the flight of a bird, the falling of a leaf, the laughter of a child, the vibration of song, changes the whole universe. The boy shying a stone from one tree to another alters the center of gravity for the earth. And if the movements of dead leaves and stones are events unchangeably written down in nature, how much more are living hopes and thoughts. The soul is more sensitive than the thermometer, more delicate than the barometer, and all its processes are registered. Thoughts are events that stain the mind through in fast colors. Did man but know it, no event falls through memory's net.

It helps us to understand the immortality of memory to notice the provision made in nature for revealing hidden facts and forces. To-day chemistry shows us how events done in darkness shall be revealed in light, and the deeds of the closet be proclaimed from the housetop. In olden times princes communicated with each other by messengers. Then it was necessary to guard against the dispatch falling into the hands of the enemy, so between the lines of the apparent message was a dispatch traced in letters as colorless as water. But when the sheet was held before the blazing fire, the secret writing appeared. Thus in the kingdom of the soul, nature has provided for causing events to stand forth from the past. Under stimulus the memory performs the most astonishing feats. Excitement is a fire that causes the dim record to stand forth in clearness.