The important thing is not to stop questioning. Curiosity has its own reason.

I never think of the future. It comes soon enough.

Life is like riding a bicycle. To keep your balance you must keep moving.

Imagination is more important than knowledge. Knowledge is limited.

To be a writer was always my greatest aim. I remember writing a play about Guy Fawkes when I was 10. I suppose it's significant, at least to me, that my first work should be about a historical figure.

My imagination is my polestar; I steer by that.

Imagination is not the exclusive appanage of artists, but belongs in varying degrees to all men.

Fundamental research is needed to make progress, which you cannot do solely by copying others. If you only do applied research, you quickly lose creativity.