"Escribir es un acto de libertad, y la libertad siempre es peligrosa para quienes quieren controlar las mentes."

Language is the key to understanding higher mental processes.

"There is a world of difference between the love we feel for a wild creature and the love we feel for a human being."

发明的进步使人类拥有了世纪前最大胆的想象也无法梦见的力量。