Science advances through tentative answers to a series of more and more subtle questions which reach deeper and deeper into the essence of natural phenomena.

How do you know that the incessant progress of science will not compel scientists to consider that life has existed during eternity, and not matter?

To know how to wonder and question is the first step of the mind toward discovery.

Work usually follows will.

The more I know, the more nearly is my faith that of the Breton peasant. Could I but know all I would have the faith of a Breton peasant woman.

In the realm of scientific observation, luck is granted only to those who are prepared.

One must not assume that an understanding of science is present in those who borrow the language