Everything that lives, does so under the categorical condition of decisively interfering in the life of someone else.

By striving to do the impossible, man has always achieved what is possible. Those who have cautiously done no more than they believed possible have never taken a single step forward.

A Boss in Heaven is the best excuse for a boss on earth, therefore If God did exist, he would have to be abolished.

We must overthrow the material and moral conditions of our present-day life. . . . We must first purify our atmosphere and completely transform the milieu in which we live; for it corrupts our instinct and our will, and constricts our heart and our intelligence

The right to unite freely and to separate freely is the first and most important of all political rights.

Mr. Marx does not believe in God, but he believes deeply in himself. His heart is filled not with love but with rancor. He has very little benevolence toward men and becomes... furious and... spiteful... when anyone dares question the omniscience of the divinity whom he adores, that is to say, Mr. Marx himself.

All religions, with their gods, their demigods, and their prophets, their messiahs and their saints, were created by the credulous fancy of men who had not attained the full development and full possession of their faculties.