Self-portraits are a way of revealing something about oneself.

Memory is everything. Without it we are nothing.

Vienna is relatively small. And it had wonderful salons, opportunities for people to get together. There was a lot of interaction between scientists and non-scientists, between Jews and non-Jews, between artists, writers and scientists, including medical scientists.

Truth has many dimensions, and the way you arrive at truth in complex situations is through many perspectives.

It is this potential for plasticity of the relatively stereotyped units of the nervous system that endows each of us with our individuality.

Has it ever struck you ... that life is all memory, except for the one present moment that goes by you so quickly you hardly catch it going? It’s really all memory ... except for each passing moment.

There was an idea that God created man different from other animals, because man was rational and animals had drives and instincts. That idea of a rational man that was specially created went out the window when Darwin showed that we evolved from animal ancestors, that we have instincts, much as do animals, and that our instincts are very important. It was a much more sophisticated, nuanced, and rich view of the human mind.