Sigmund Freud

What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.

We believe that civilization has been created under the pressure of the exigencies of life at the cost of satisfaction of the instincts.

Civilization began the first time an angry person cast a word instead of a rock.

The future is an opaque mirror. Anyone who tries to look into it sees nothing but the dim outlines of an old and worried face.

Admittedly, it is really our duty, as artists, to hold up a mirror to our own era; but, on the other hand, these works have lives of their own, and they're still alive today.

I was good at being a doctor; my patients liked me. At times people trust you with things they wouldn't tell their spouses. It was a real privilege.