Nature delights in making use of the same forms in the most various biological connections: as it does, for instance, in the appearance of branch-like structures both in coral and in plants, and indeed in some forms of crystal and in certain chemical precipitates.

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.

dream is the dreamer's own psychical act.

[The child] takes his play very seriously and he expends large amounts of emotion on it. The opposite of play is not what is serious but what is real.

I have never doubted that religious phenomena are only to be understood on the pattern of the individual neurotic symptoms familiar to us.

There is a psychological technique which makes it possible to interpret dreams, and ... if that procedure is employed, every dream reveals itself as a psychical structure which has a meaning and which can be inserted at an assignable point in the mental activities of waking life.

When we share - that is poetry in the prose of life.