Blessed is he who carries within himself a God, an ideal, and obeys it.

The greatest malfunction of spirit is to believe things.

I have the faith of a Breton peasant and by the time I die I hope to have the faith of a Breton peasant's wife.

I give them experiments and they respond with speeches.

The only thing that can bring joy is work.

Virulence appears in a new light which cannot but be alarming to humanity; unless nature, in her evolution down the ages (an evolution which, as we now know, has been going on for millions, nay, hundreds of millions of years), has finally exhausted all the possibilities of producing virulent or contagious diseases - which does not seem very likely.

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