Have no fear of perfection - you'll never reach it.
I am more and more convinced that our happiness or unhappiness depends more on the way we meet the events of life than on the nature of those events themselves.
My philosophy is that not only are you responsible for your life, but doing the best at this moment puts you in the best place for the next moment.
Bear in mind that you should conduct yourself in life as at a feast.
Music is essentially useless, as life is.
Sometimes I've believed as many as six impossible things before breakfast.
The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.