I cannot face the idea of life without work. What would one do when ideas failed or words refused to come? It is impossible not to shudder at the thought.

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.

We have become convinced that it is better to avoid such symbolic disguisings of the truth in what we tell children and not to withhold from them a knowledge of the true state of affairs commensurate with their intellectual level.

I was making frequent use of cocaine at that time ... I had been the first to recommend the use of cocaine, in 1885, and this recommendation had brought serious reproaches down on me.

My psychoanalysis has equipped you with the equivalent of a train ticket to recovery. It is now your decision whether or not you choose to make full use of it.

If the truth of religious doctrines is dependent on an inner experience that bears witness to the truth, what is one to make of the many people who do not have that experience?

Neurosis is the inability to tolerate ambiguity.