Blessed is he who carries within himself a God, an ideal, and who obeys it: ideal of art, ideal of science, ideal of the gospel virtues, therein lie the springs of great thoughts and great actions; they all reflect light from the Infinite.

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.

It would seem to me that I was committing a theft if I were to let one day go by without doing some work.

Question your priorities often, make sure God always comes first.

When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.

Messieurs, c'est les microbes qui auront le dernier mot." (Gentlemen, it is the microbes who will have the last word.)

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