All history has been a history of class struggles, of struggles between exploited and exploiting, between dominated and dominating classes at various stages of social development.

The state is nothing but an instrument of opression of one class by another - no less so in a democratic republic than in a monarchy.

Terror consists mostly of useless cruelties perpetrated by frightened people in order to reassure themselves.

Freedom is the recognition of necessity.

Everything must justify its existence before the judgment seat of Reason, or give up existence.

Without analysis, no synthesis.

The emancipation of woman will only be possible when woman can take part in production on a large, social scale, and domestic work no longer claims anything but an insignificant amount of her time.

Some laws of state aimed at curbing crime are even more criminal.

An ounce of action is worth a ton of theory.

From the first day to this, sheer greed was the driving spirit of civilization.

No nation can be free if it oppresses other nations.

What makes a family is neither the absence of tragedy nor the ability to hide from misfortune, but the courage to overcome it and, from that broken past, write a new beginning.

I missed you, Angel. Not one day went by that I didn't feel you missing from my life.

I have produced all kinds of music because I love all kinds of music.

In the material sciences these are and have been, and are most surely likely to continue to be heroic days.

What I do is try to stay away from the hot subjects.

For politics is in its essence as Adams had said, the 'systematic organization of hatred': either you were organized or you were not.

Nobody has a monopoly on good ideas

In an expanding universe, time is on the side of the outcast.

I think likelier targets are [Steve] Mnuchin, the Treasury pick. When you look at his dealings during the financial crisis, that's going to be a target rich environment, and [Rex] Tillerson.

It has become cheaper to look for oil on the floor of the New York Stock Exchange than in the ground.