The extraordinary courage and wisdom of Kant and Schopenhauer have succeeded in gaining the most difficult victory, the victory over the optimism concealed in the essence of logic-an optimism that is the basis of our culture.

Optimism is important. You have to be a little silly about the goals you are going to set. There is a phrase I learned in college called, 'having a healthy disregard for the impossible.' That is a really good phrase. You should try to do things that most people would not do.

My view is that at a younger age your optimism is more and you have more imagination etc. You have less bias.

I approach every problem with optimism.

We must laugh in the face of our helplessness against the forces of nature - or go insane.

Life is a beautiful, magnificent thing, even to a jellyfish.