You never fail until you stop trying.

I must be willing to give up what I am in order to become what I will be.

I know quite certainly that I myself have no special talent; curiosity, obsession and dogged endurance, combined with self-criticism, have brought me to my ideas.

Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts.

God is subtle but he is not malicious.

I have no special talents. I am only passionately curious.