Curiosity is a delicate little plant that, aside from stimulation, stands mainly in need of freedom.

The most practical solution is a good theory.

All such action would cease if those powerful elemental forces were to cease stirring within us.

For an idea which, at first, does not seem absurd, there is no hope.

Reason is intuition's servant.

I wish to do something Great and Wonderful, but I must start by doing the little things like they were Great and Wonderful

I received your letter of June 10th. I have never talked to a Jesuit priest in my life and I am astonished by the audacity to tell such lies about me. From the viewpoint of a Jesuit priest I am, of course, and have always been an atheist.