If bread or butter wanted weight;
And wisely tell what hour o' th' day
The clock does strike, by algebra."
Another prerequisite of wisdom is intellectual humility, Solomon, says, "Before honor is humility;" and humility is before wisdom, and even before learning. We ought not to be ashamed of involuntary ignorance. Franklin, when asked how he came to know so much, replied, "By never being ashamed to ask a question."
It is idle for any one to imagine that there is nothing more for him to learn. Indeed, such a theory is good evidence of defective education and limited attainments, if not of a defective mental and moral structure.
Naturalists delight and instruct their pupils and auditors with the wonderful truths folded in the flower, garnered in the plant, or imprisoned in the rock. Yet how much more there must be of God's wisdom in the humblest of the beings created in his image! There are distinctions among men; and out of these distinctions come the truth and the necessity that each may be both a teacher and a pupil of every other. No man, however learned he may be, does know or can know all that is known by his neighbor, though that neighbor be the humblest of shepherds or of fishermen. We are not independent of each other in anything. The earnest and faithful disciple of wisdom goes through life everywhere diffusing knowledge, and everywhere gathering it up. Over the great gateway of life is the inscription, "None but learners enter here;" and along its paths and in its groves are tablets, on which is written, "None but learners sojourn here." He is a poor teacher who is not a learner, and he is but little of a learner who is not something of a teacher also. The best teachers are they who are pupils, and the best pupils are already teachers. Such was the real and avowed character of the great teachers of antiquity; such is the best practice of modern continental Europe, and such is the requirement of nature in all ages. He who does not learn cannot teach. Socrates professed to know only this, that he knew nothing. Plato was a disciple of Socrates and Euclid; a pupil in the school of Pythagoras; and, as a traveller, under the disguise of a merchant and a seller of oil, he visited Egypt, and thus gained a knowledge of astronomy, and added something to his learning in other departments. He numbered among his pupils Isocrates, Lycurgus, Aristotle, and Demosthenes; and for eight years Alexander the Great was the pupil of Aristotle, while Demosthenes
"Wielded at will that fierce Democratie,
Shook the arsenal, and fulmined over Greece
To Macedon, and Artaxerxes' throne."
Thus we trace Demosthenes and Alexander, the master spirits in the struggle of Grecian independence against Macedonian supremacy, through teachers and culture up to Socrates, the wanderer in the streets, and the disturber of the peace of Athens.