It's the birthday of François VI, duke de La Rochefoucauld, born in Paris (1613), who wrote a slim book in 1665 called Maxims, a series of witty sayings about human nature.

"There are some people who would never have fallen in love if they had not heard that there was such a thing."

"We all have strength enough to endure the troubles of others."

"Everybody complains of his memory, but nobody of his judgement."