Cada libro es un mundo por descubrir, lleno de sorpresas y enseñanzas.

I don't like defining myself. I just am.

If you think you understand quantum mechanics, you don't understand quantum mechanics.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

实现明天的唯一限制将是我们今天的疑虑。