The process for awarding Nobel prizes is so complex that it cannot be corrupted.

It is imperfection - not perfection - that is the end result of the program written into that formidably complex engine that is the human brain, and of the influences exerted upon us by the environment and whoever takes care of us during the long years of our physical, psychological and intellectual development.

My life has been enriched by excellent human relations, work and interests. I have never felt lonely.

I told Mother of my decision to study medicine. She encouraged me to speak to Father... I began in a roundabout way... He listened, looking at me with that serious and penetrating gaze of his that caused me such trepidation, and asked whether I knew what I wanted to do.

At 100, I have a mind that is superior - thanks to experience - than when I was 20.

I tell young people: Do not think of yourself, think of others. Think of the future that awaits you, think about what you can do and do not fear anything.

You've been thinking about something without willing to for a long time...Then, all of a sudden, the problem is opened to you in a flash and you suddenly see the answer.