Perhaps our greatest distinction as a species is our capacity, unique among animals, to make counter-evolutionary choices. Why Is Sex Fun?: The Evolution of Human Sexuality

Despite being depicted in innumerable cartoons as apelike brutes living in caves, Neanderthals had brains slightly larger than our own. They were also the first humans to leave behind strong evidence of burying their dead and caring for their sick. Guns, Germs And Steel

“I wanted to excel in your eyes, show my strength of will, wait before writing you, first finish a document, but the room is empty, no one is minding me – it’s as if someone said: leave him alone, can’t you see how engrossed he is in his own affairs, it’s as if he had a fist in his mouth. So I only wrote half a page and am once again with you, lying on this letter like I lay next to you back then in the forest.” (16 July 1920) Letters To Milena

“Perhaps the feelings that we experience when we are in love represent a normal state." Seagull