Science, which cuts its way through the muddy pond of daily life without mingling with it, casts its wealth to right and left, but the puny boatmen do not know how to fish for it.

Human development is a form of chronological unfairness, since late-comers are able to profit by the labors of their predecessors without paying the same price.

Modern Western thought will pass into history and be incorporated in it, will have its influence and its place, just as our body will pass into the composition of grass, of sheep, of cutlets, and of men.

What breadth, what beauty and power of human nature and development there must be in a woman to get over all the palisades, all the fences, within which she is held captive!

Liberalism, austere in political trifles, has learned ever more artfully to unite a constant protest against the government with a constant submission to it.

I believe what I write to be the truth...every man who is not indifferent to the truth has a weakness for spreading it about.

People who have realized that this is a dream imagine that it is easy to wake up, and are angry with those who continue sleeping, not considering that the whole world that environs them does not permit them to wake. Life proceeds as a series of optical illusions, artificial needs and imaginary sensations.