Academic freedom is not without its dangers; but there are dangers which it is safer to face than to avoid. In Germany--so far as my own experience goes--students are often left too much to themselves, and it is only the cleverest among them, or those who are personally recommended, who receive from the professors that personal guidance and encouragement which should and could be easily extended to all. There is too much time given in the German Universities to mere lecturing, and often in simply retailing to a class what each student might read in books often in a far more perfect form. Lectures are useful if they teach us how to teach ourselves; if they stimulate; if they excite sympathy and curiosity; if they give advice that springs from personal experience; if they warn against wrong roads; if, in fact, they have less the character of a show-window than of a workshop. Half an hour's conversation with a tutor or a professor often does more than a whole course of lectures in giving the right direction and the right spirit to a young man's studies. Here I may quote the words of Professor Helmholtz, in full agreement with him. "When I recall the memory of my own University life," he writes, "and the impression which a man like Johannes Müller, the professor of physiology, made on us, I must set the highest value on the personal intercourse with teachers from whom one learns how thought works on independent heads. Whoever has come in contact but once with one or several first-class men will find his intellectual standard changed for life."