You have never loved me. You have only thought it pleasant to be in love with me.

The strongest man in the world is he who stands most alone.

Oh yes, right—right. What is the use of having right on your side if you have not got might?

The majority never has right on its side. Never, I say! That is one of these social lies against which an independent, intelligent men must wage war. Who is it that constitute the majority of the population in a country? Is it the clever folk, or the stupid? I don't imagine you will dispute the fact that at present the stupid people are in an absolutely overwhelming majority all the world over.

Public opinion is an extremely mutable thing

It is inexcusable for scientists to torture animals; let them make their experiments on journalists and politicians.

...every man shares the responsibility and the guilt of the society to which he belongs.