It has become necessary for me to have this woman, so as to save myself from the ridicule of being in love with her: for to what lengths will a man not be driven by thwarted desire?

La vengeance est un plat qui se mange froid

Marquise de Merteuil: I've distilled every thing to one single principle: win or die.

...it is not for the illusion of a moment to govern the choice of a lifetime.

You may conquer her love of God: you will never overcome her fear of the devil.

I see you are already as timid as a slave: you might as well be in love.

I assure you that the world is not so amusing as we imagined.