Ricardo

“Marry, and you will regret it; don’t marry, you will also regret it; marry or don’t marry, you will regret it either way. Laugh at the world’s foolishness, you will regret it; weep over it, you will regret that too; laugh at the world’s foolishness or weep over it, you will regret both. Believe a woman, you will regret it; believe her not, you will also regret it… Hang yourself, you will regret it; do not hang yourself, and you will regret that too; hang yourself or don’t hang yourself, you’ll regret it either way; whether you hang yourself or do not hang yourself, you will regret both. This, gentlemen, is the essence of all philosophy.”
― Søren Kierkegaard

“Der Mensch kann tun was er will; er kann aber nicht wollen was er will.

Man can do what he wills but he cannot will what he wills.”
― Arthur Schopenhauer, Essays and Aphorisms

“All which is beautiful and noble is the result of reason and calculation.”
― Charles Baudelaire

“In a world that operates largely at random, coincidences are to be expected, but any one of them must always be mistrusted.”
― Rex Stout, Champagne for One