The lessons of experience are always learned too late.

Not to love is to cease to live.

The whole secret of the study of nature lies in learning how to use one's eyes.

It seems to me that the earth belongs to God who made it and entrusted it to men as a perpetual home. But it cannot have been part of His plan that some men should be ill with overfeeding and that others should die of starvation. No matter what anyone can say they cannot prevent me from feeling sad and angry when I see a beggar crying at a rich man's door.

Nature distributes her favors unequally.

a woman, when she is heroic, is not heroic by halves.

... what is there over which the incomparable beauty of childhood would not triumph?