"Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social enviroment. Most people are incapable of forming such opinions."(Essay to Leo Baeck, 1953)"
"It is harder to crack prejudice than an atom."
"We know from daily life that we exist for other people first of all, for whose smiles and well-being our own happiness depends."
"Oh juventud nunca dejes de pensar..."
"I believe in intuitions and inspirations...I sometimes FEEL that I am right. I do not KNOW that I am."
"No, this trick won't work... How on earth are you ever going to explain in terms of chemistry and physics so important a biological phenomenon as first love?"