Nothing reveals a man's character better than the kind of joke at which he takes offense.

Do not judge God's world from your own. Trim your own hedge as you wish and plant your flowers in the patterns you can understand, but do not judge the garden of nature from your little window box.

Above all things expand the frontiers of science: without this the rest counts for nothing.

Man is to be found in reason, God in the passions.

It is in the gift for employing all the vicissitudes of life to one's own advantage and to that of one's craft that a large part of genius consists.

Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.

I have never yet met anyone who did not think it was an agreeable sensation to cut tinfoil with scissors.