None, but people of strong passion are capable of rising to greatness. — Honore Gabriel Riqueti, comte de Mirabeau
He who, with strong passions, remains chaste–he who, keenly sensitive, with manly — Frederick William Robertson
A strong passion for any object will ensure success, for the desire of the end will point out the means. — Henry Hazlitt
He who can traverse the pit of darkness will emerge a stronger, more compassionate person. — Martin Israel
What a mistake to suppose that the passions are strongest in youth! — Edward Bulwer-Lytton, 1st Baron Lytton
When passions and appetites are stronger than the intellect, men are savages; — Robert Green Ingersoll