Our most bitter enemies are our own kith and kin. Kings have no brothers, no sons, no mother!

You're a fine fastidious young man, as proud as a lion, as gentle as a girl. You'd make a good catch for the devil.

True love is mixed up with birdlike squabbles, in which the disputants wound each other to the quick; but a quarrel without animus is, on the contrary, apiece of flattery to the dupe's conceit.

Thinking is seeing.... Every human science is based on deduction, which is a slow process of seeing by which we work up from the effect to the cause; or, in a wider sense, all poetry like every work of art proceeds from a swift vision of things.

No hawk swooping down upon his prey, no stag improvising new detours by which to trick the huntsman, no dog scenting game from afar is comparable in speed to the celerity of a salesman when he gets wind a deal, to his skill in tripping up or forestalling a rival, and to the art with which he sniffs out and discovers a possible sale.

Love which economizes is never true love.

Necessity is often the spur to genius.