A thorough education is indeed necessary to overcome this attitude; we must master and control our own wills, if we would bring ourselves into relation with the external world and appreciate its values. Without this preparation we cannot give due weight to the minute things from which science draws its conclusions.
The capacity for sustained and accurate application to a task the object of which is apparently of very small importance, is indeed a most valuable asset to him who hopes to advance in science. Let us call to mind what a physicist does to place an instrument absolutely level; how patiently he turns first one screw and then another, tries again and again, slowly and carefully: and to what end? to procure an absolutely horizontal direction for a surface. When this measure of comparison is established in hard metal, how carefully it must be preserved to ensure that the oscillations of temperature shall not modify the length even in the most infinitesimal degree; for this would be fatal to the scientific use of the instrument in measuring horizontals. And yet how slight a thing in itself is involved! the preservation of a measure! When the great chemist wishes to find out whether traces of a substance can give a reaction he seems to be playing with his phials like a little boy; he takes a retort and fills it with the substance he wishes to study, and then empties it; afterwards he fills it with water, and watches for the reaction; the reaction takes place; then again he empties the retort, fills it anew with water, and sees whether there is a further reaction. Thus he establishes the degree of dilution in which the substance will leave traces. In this case the minimum is the important thing; it was to find this imperceptible, negligible minimum that the great man acted like a child.
This attitude of humility is an element of patience. In all things the scientist is humble: from the external action of descending from his professional throne to work standing at a little table, from the taking off of his robes to don the workman's blouse, from having laid aside the dignity of one who states an authoritative and indisputable truth to assume the position of one who is seeking the truth together with his pupils, and inviting them to verify it, to the end not that they should learn a doctrine but that they should be spurred to activity by the truth—from all this, down to the tasks he carries out in his laboratory. He considers nothing too small to absorb all his powers, to claim his entire attention, to occupy all his time. Even when social honors are heaped upon him, he maintains the same attitude, which is to him the only true honor, the real source of his greatness. A microbe, an excretion, anything, may interest the man of science, even though he be a senator or a Minister of State. The example of Cincinnatus is not to be compared with that of the modern scientist, for these workers surpass Cincinnatus immeasurably, in their power of bringing glory and salvation to humanity.
But the highest form of humility in men of science is their ready self-abnegation, not only in externals, but even in spiritual things, such as a cherished ideal, convictions that have germinated in their minds. Confronted with truth, the man of science has no pre-conceptions; he is ready to renounce all those cherished ideas of his own that may diverge therefrom. Thus, gradually, he purifies himself from error, and keeps his mind always fresh, always clear, naked as the Truth with which he desires to blend in a sublime union.
Is not this, perhaps, the reason why the specialist in infantile diseases has at present a social dignity and authority far superior to those of a schoolmaster? Yet the specialist merely seeks for truth among the excretions of the child's diseased body; but the master veils its soul with errors.
But how would it be if the master should seek the truth in the soul of the child? What an incomparable dignity would be his! To raise himself to this height, however, he would have to be initiated into the ways of humility, of self-abnegation, of patience; and to destroy the pride which is built on the void of vanity. After this he, too, might put on the spiritual vesture of the scientist, saying to the people: What did you see in the other true sciences? Reeds shaken by the wind? Men clothed in soft raiment? No, you saw prophets; but I am more than a prophet; I am he who crieth in the wilderness: prepare ye the way of the Lord, make His paths straight.
More, indeed, than the other men of science; for they must always remain extraneous to the object of their study: electric energy, chemical energy, the life of microbes, the stars, are all things diverse and remote from the scientist. But the object of the schoolmaster is man himself; the psychical manifestations of children evoke something more in him than interest in the phenomenon; he obtains from them the revelation of himself, and his emotions vibrate at the contact of other souls like his own. All life may be his portion, not merely a part of life. Then those virtues, such as humility and patience, which spring up in the man of science within the limitations of the external aims he has fixed for himself, may here enfold the entire soul. Then it will no longer be a question of the "patience of the man of science," or the "humility of the man of science," but of the virtues of man in all their plenitude.
That spiritual expansion of the man of science which is, as it were, compressed into a tube, like rays of light passing through the cylinders of the telescope, may here be diffused on the horizon like the dazzling splendor of the sun. The so-called virtues are the necessary means, the methods of existence by which we attain to truth; but the delight of the scientist in his work must vary in proportion as this truth is manifested in a physical force, a protozoan, or the soul of man. The one name seems scarcely suitable for the two forms. We understand at once that, in comparison with the schoolmaster, the scientist must be to some extent a limited and arid being. The nobility of his spirit is lofty as man, but its dimensions are those of a brute force or an inferior life.
The spiritual life of man may blend with the virtues of the man of science only when the student and the subject of study can be fused together. Then science may become a wellspring of wisdom, and true positive science may become one with the true knowledge of the saints. There is a real mechanism of correspondence between the virtues of the man of science and the virtues of the saints; it is by means of humility and patience that the scientist puts himself in contact with material nature; and it is by means of humility and patience that the saint puts himself in contact with the spiritual nature of things, and as a consequence, mainly with man. The scientist is virtuous only within the limits of his material contacts; the saint is "all compact" of such virtue; his sacrifices and his enjoyments are alike illimitable. The scientist is a seer within the limits of his field of observation; the saint is a spiritual seer, but he also sees material things and their laws more clearly than other men, and invests them with spirit.