It is better to know nothing than to know badly, or little, which is the same thing. But do we know what ignorance is? So many things have to be learned in order to appreciate and understand it! Those who might enjoy ignorance, since they possess it, are under too many illusions concerning themselves to find any frank refreshment in it; and those who would be glad to do so, have left their first innocence too far behind them. There have been moments of civilization when men knew everything. It was not much. Was it much less than all the science of to-day? This relativity may well make us reflect upon the value of education. It will aid us also to indicate its true character. Education is never other than relative. It ought, then, to be practical. M. Barrès, in his last novel,[2] makes a deputy of Burdeau's type say: "Virtue, like patriotism, is a dangerous element to arouse in the masses." To these two abstractions should, perhaps, be added all the others, in order to decree a general ostracism against every idea that has not first been defined. And this would not mean the proscription of virtues or of patriotic sentiments, but simply this, that nothing is worse for the health of an average intelligence than playing with abstract words--than that false verbal science which is at once found inapplicable on entering real life. It is not a matter of being virtuous; how realize a word which is the synthesis of several contradictory ideals? It is a matter of accommodating one's nature to the vital conditions and moral traditions of his environment. It is not a matter of being patriotic. It is a matter of defending, against strange beasts, the purity of the spring where one drinks. It is not a matter of knowing the abstract principle in which the broad river of general ideas may find its source. It is a matter of making life at once an act of faith and an act of prudence. It is a matter first and foremost of preserving enough simplicity to breathe joyfully the social air, and enough suppleness to obey, without cowardice, the elementary laws of life. Life is a series of sensations bound together by states of consciousness. Unless your organism is such that the abstract notion redescends towards the senses the moment it has been understood; unless the word Beauty gives you a visual sensation; unless handling ideas gives you a physical pleasure, almost like caressing a shoulder or a fabric, let ideas alone. When a miller has no grist, he shuts his sluices and sleeps, or goes and takes a walk. He never dreams of running his mill when it is empty, and wearing out his stones grinding air. Education is often nothing but the wind raised by the whirling of the bolts, and felt as words.