——"Every one may glory in his industry!" This is a true word from the lips of a truly industrious man, who was also one of the most modest. But Lessing did not, however, mean by them to charter Pharisaical pedantry. The necessity sometimes of giving one's self to an excess of work injurious to the health, generally arises from the fact that he has not at other times made use of the requisite attention to the necessary industry, and then attempts suddenly and as by a forced march to storm his way to his end. The result of such over-exertion is naturally entire prostration. The pupil is therefore to be accustomed to a generally uniform industry, which may extend itself at regular intervals without his thereby overstraining himself. What is really gained by a young man who has hitherto neglected time and opportunity, and who, when examination presses, overworks himself, perhaps standing the test with honor, and then must rest for months afterwards from the over-effort? On all such occasions attention is not objective and dispassionate, but rather becomes, through anxiety to pass the examination, restless and corrupted by egotism; and the usual evil result of such compulsory industry is the ephemeral character of the knowledge thus gained. "Lightly come, lightly go," says the proverb.—— ——A special worth is always attached to study far into the night. The student's "midnight lamp" always claims for itself a certain veneration. But this is vanity. In the first place, it is injurious to contradict Nature by working through the night, which she has ordained for sleep; secondly, the question is not as to the number of hours spent in work and their position in the twenty-four, but as to the quality of the work. With regard to the value of my work, it is of no moment whatsoever whether I have done it in the morning or in the evening, or how long I have labored, and it is of no consequence to any one except to my own very unimportant self. Finally, the question presents itself whether these gentlemen who boast so much of their midnight work do not sleep in the daytime!——