“All is for the best in the best of possible worlds.”

“If this is the best of possible worlds, what then are the others?”

“I am the best-natured creature in the world, and yet I have already killed three, and of these three two were priests.”

“It is best one should quote what one doesn't understand at all in the language one knows the least”

“The best is the enemy of good.”

“All events are linked together in the best of possible worlds; after all, if you had not been driven from a fine castle by being kicked in the backside for love of Miss Cunegonde, if you hadn't been sent before the Inquisition, if you hadn't traveled across America on foot, if you hadn't given a good sword thrust to the baron, if you hadn't lost all your sheep from the good land of Eldorado, you wouldn't be sitting here eating candied citron and pistachios. - That is very well put, said Candide, but we must cultivate our garden.”

“The best government is a benevolent tyranny tempered by an occasional assassination.”