In science, we must be open to the possibility that our most cherished theories could be wrong.

There is an awful lot you can tell about a person by their shoes. Where they're going. Where they've been.

I don’t think anything is unrealistic if you believe you can do it.

真相不是我们找到的东西，而是我们创造的东西。

A felicidade é como uma borboleta: quanto mais você tenta pegá-la, mais ela foge. Mas se você parar de persegui-la, ela pode pousar em você.

Never underestimate the power of small improvements—they compound over time.