It took me 40 years to write my first book.

Go for the impossible. I always tried to find my own limits. So far I did not find them, so my universe is in constant expansion.

The Good Fight is the one that we fight in the name of our dreams.

Believing everything your child does wrong is entirely down to the company he or she keeps.

JOY goes against the foundations of mathematics: it multiplies when we divide.

The roller-coaster is my life; life is a fast, dizzying game; life is a parachute jump; it’s taking chances, falling over and getting up again; it’s mountaineering; it’s wanting to get to the very top of yourself and feeling angry and dissatisfied when you don’t manage it

Elegance is accepted and admired because it makes no effort to be elegant.