I am actually not at all a man of science, not an observer, not an experimenter, not a thinker. I am by temperament nothing but a conquistador

Love is a state of temporary psychosis.

My way of working was different years ago. I used to wait until an idea came to me. Now I go half-way to meet it, though I don't know whether I find it any the quicker.

The doctor should be opaque to his patients and, like a mirror, should show them nothing but what is shown to him.

I have found little that is 'good' about human beings on the whole. In my experience most of them are trash, no matter whether they publicly subscribe to this or that ethical doctrine or to none at all. That is something that you cannot say aloud, or perhaps even think.

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

When inspiration does not come to me, I go halfway to meet it.