From the crooked timber of humanity, a straight board cannot be hewn. Author: Immanuel Kant Copy Quote More from Immanuel Kant “An action, to have moral worth, must be done from duty.” “Law And Freedom without Violence (Anarchy)Law And Violence without Freedom (Des…” “Agisci in modo da considerare l'umanità, sia nella tua persona, sia nella perso…” “Have the courage to use your own reason- That is the motto of enlightenment. "F…”