Symbols are the medium of thought.

译文：不怕自身会产生恶念，只怕发觉自身的恶念太迟。

Science should be accessible to everyone, regardless of background.

没有风险的征服是没有荣耀的胜利。

当股票有吸引力时，你就买它们。当然，它们可能会跌得更低。我买过12美元的股票，后来跌到2美元，但后来又涨到30美元。

Cognition refers to all processes by which the sensory input is transformed, reduced, elaborated, stored, recovered, and used.