Attachment is the great fabricator of illusions; reality can be attained only by someone who is detached.

What is surprising is not that oppression should make its appearance only after higher forms of economy have been reached, but that it should always accompany them.

Of two men who have no experience of God, he who denies him is perhaps nearer to him than the other.

The glossy surface of our civilization hides a real intellectual decadence.

...nothing on earth can stop man from feeling himself born for liberty. Never, whatever may happen, can he accept servitude; for he is a thinking creature.

The supernatural virtue of justice consists of behaving exactly as though there were equality when one is the stronger in an unequal relationship.

One could count on one's fingers the number of scientists throughout the world with a general idea of the history and development of their particular science: there is none who is really competent as regards sciences other than his own. As science forms an indivisible whole, one may say that there are no longer, strictly speaking, scientists, but only drudges doing scientific work.