There's something here, my dear boy, that you don't....

“ There's something here, my dear boy, that you don't understand yet. A man will fall in love with some beauty, with a woman's body, or even a part of a woman's body (a sensualist can understand that) and he'll abandon his own children for her, sell his father and mother, and his country, Russia, too. If he's honest, he'll steal; if he's humane, he'll murder; if he's faithful, he'll deceive. ”

Fyodor Dostoyevsky

From : The Brothers Karamazov