A theory should not attempt to explain all the facts, because some of the facts are wrong.

I'm not perfect, I don't claim to be. But I'm trying.

进步的关键在于坚持和好奇心。

The creative process is a form of meditation.

我们不仅仅是开采煤炭，我们在为国家提供动力。

人类的自由在其选择中被限制。