Securities, certitudes and peace do not lead to discoveries.

Life really does begin at forty. Up until then, you are just doing research.

I am the triple owner of the world, the finest Turkey, the Lorelei, Germania and Helvetia of exclusively sweet butter and Naples, and I must supply the whole world with macaroni.

As any change must begin somewhere, it is the single individual who will experience it and carry it through. The change must indeed begin with an individual; it might be any one of us. Nobody can afford to look round and to wait for somebody else to do what he is loath to do himself.

From the middle of life onward, only he remains vitally alive who is ready to die with life.

We are convinced that certain people have all the bad qualities we do not know in ourselves.

It all depends on how we look at things, and not how they are in themselves.