Science is Christian, not when it condemns itself to the letter of things, but when, in the infinitely little, it discovers as many mysteries and as much depth and power as in the infinitely great.

The law of humanity ought to be composed of the past, the present, and the future, that we bear within us; whoever possesses but one of these terms, has but a fragment of the law of the moral world.

The perfection of art is to conceal art.

Time is the fairest and toughest judge.

What we share with another ceases to be our own.