Discipline brings us effort, sacrifice and suffering. Later it brings us something of an inestimable value: something of which those who live only for pleasure, profit or amusement will always be deprived. This peculiar indefinable joy which one must have felt oneself to understand is the sign with which life marks its moment of triumph.

The secret of life is to be found in life itself, in the full organic, intellectual and spiritual activities of our body.

Logic never attracts men to the point of carrying them away.

The atmosphere of libraries, lecture rooms and laboratories is dangerous to those who shut themselves up in them too long. It separates us from reality like a fog.

The search for God is indeed, an entirely personal undertaking.... the most audacious adventure that one can dare.

...in recognition of his work on vascular suture and the transplantation of blood-vessels and organs.

In joy or sorrow, health or sickness, prosperity or the reverse, the effort must still continue. One must rise after every fall and gradually acquire courage, faith, the will to succeed and the capacity to love.