There has never been any great genius without a spice of madness.

Light griefs do speak, while sorrow's tongue is bound.

Luck is preparation multiplied by opportunity.

Every one has time if he likes. Business runs after nobody: people cling to it of their own free will and think that to be busy is a proof of happiness.

That day which you fear as being the end of all things is the birthday of your eternity.

There is nothing more despicable than an old man who has no other proof than his age to offer of his having lived long in the world.

Demand not that I am the equal of the greatest, only that I am better than the wicked.