Religious doctrines … are all illusions, they do not admit of proof, and no one can be compelled to consider them as true or to believe in them.

The time comes when each of us has to give up as illusions the expectations which, in his youth, he pinned upon his fellow-men, and when he may learn how much difficulty and pain has been added to his life by their ill-will.

In matters of sexuality we are at present, every one of us, ill or well, nothing but hypocrites.

If you want your wife to listen to you, then talk to another woman; she will be all ears.

The psychic development of the individual is a short repetition of the course of development of the race.

You can always make a lot of people love one another so long as there are a smaller number outside the group for them to kick.

If youth knew; if age could.