But if the first rule is to obey your native bias, to accept that work for which you were inwardly formed, the second rule is concentration, which doubles its force. Thus if you are a scholar, be that. The same laws hold for you as for the laborer. The shoemaker makes a good shoe because he makes nothing else. Let the student mind his own charge; sedulously wait every morning for the news concerning the structure of the world which the spirit will give him. No way has been found for making heroism easy, even for the scholar. Labor, iron labor, is for him. The world was created as an audience for him; the atoms of which it is made are opportunities. Read the performance of Bentley, of Gibbon, of Cuvier, Geoffroy St. Hilaire, Laplace. "He can toil terribly," said Cecil of Sir Walter Raleigh. These few words sting and bite and lash us when we are frivolous. Let us get out of the way of their blows, by making them true of ourselves. There is so much to be done that we ought to begin quickly to bestir ourselves. This day-labor of ours, we confess, has hitherto a certain emblematic air, like the annual ploughing and sowing of the Emperor of China. Let us make it an honest sweat. Let the scholar measure his valor by his power to cope with intellectual giants. Leave others to count votes and calculate stocks. His courage is to weigh Plato, judge Laplace, know Newton, Faraday, judge of Darwin, criticise Kant and Swedenborg, and on all these arouse the central courage of insight. The scholar's courage should be as terrible as the Cid's, though it grow out of spiritual nature, not out of brawn. Nature, when she adds difficulty, adds brain.