François de La Rochefoucauld

In jealousy there is more self-love than love.

There is no disguise which can hide love for long where it exists, or simulate it where it does not.

True love is like ghosts, which everyone talks about but few have seen.

Absence diminishes mediocre passions and increases great ones, as the wind extinguishes candles and fans fires.

We all have enough strength to bear the misfortunes of others.