Constant labor of one uniform kind destroys the intensity and flow of a man's animal spirits, which find recreation and delight in mere change of activity.

If one wants to be an ox one can easily turn one's back on hum suffering and look after one's own skin.

Philosophy studies the world, but the point is to change it.

It would perhaps be as well if things were to remain quiet for a few years yet, so that all this 1848 democracy has time to rot away.

The ideas of the ruling class are in every epoch the ruling ideas, i.e., the class which is the ruling material force of society, is at the same time its ruling intellectual force.

The imaginary flowers of religion adorn man's chains. Man must throw off the flowers, and also the chains.

It is absolutely impossible to transcend the laws of nature. What can change in historically different circumstances is only the form in which these laws expose themselves.