"In practice people who study philosophy too long become very odd birds, not to say thoroughly vicious; while even those who are the best of them are reduced by. philosophy to complete uselessness as members of society."
"It is a common saying, and in everybody's mouth, that life is but a sojourn. The learning and knowledge that we have, is, at the most, but little compared with that of which we are ignorant."
"Think only of the ambition of men, and you will wonder at the senselessness of their ways, unless you consider how they are stirred by the love of an immortality of fame. They are ready to run all risks greater far than they would have run for their children, and to spend money and undergo any sort of toil, and even to die, for the sake of leaving behind them a name which shall be eternal."
"In order for man to succeed in life, God provided him with two means, education and physical activity. Not separately, one for the soul and the other for the body, but for the two together. With these means, man can attain perfection."
"The constrained performance of bodily labour does, it is true, exert no evil influence on the body; but in the case of the mind, no study, pursued under compulsion, remains rooted in the memory."