The difference between a lady and a flower girl is not how she behaves, but how she’s treated.

No use slaving for me and then saying you want to be cared for: who cares for a slave? If you come back, come back for the sake of good fellowship; for you’ll get nothing else.

The medieval doctors of divinity who did not pretend to settle how many angels could dance on the point of a needle cut a very poor figure as far as romantic credulity is concerned beside the modern physicists who have settled to the billionth of a millimetre every movement and position in the dance of the electrons. Not for worlds would I question the precise accuracy of these calculations or the existence of electrons (whatever they may be). The fate of Joan is a warning to me against such heresy.

Now that we have learned to fly the air like birds, swim under water like fish, we lack one thing - to learn to live on earth as human beings.

Every step of progress means a duty repudiated, and a scripture torn up.

A soldier is an anachronism of which we must get rid.

We are all victims of the violence that animals suffer... their liberation is also our liberation.