The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the breath of universal history.

I like to make beautiful things about difficult subjects.

有两样东西，人们越是经常持久地对之凝神思索，它们就越是使内心充满常新而日增的惊奇和敬畏：我头上的星空和我心中的道德律。

数学的本质不是把简单的事情复杂化，而是把复杂的事情简单化。

追求幸福与追求快乐不同；幸福是灵魂的一种状态，而不仅仅是感觉。

The energy transition is not just about reducing emissions; it's about providing reliable and affordable energy to the world.

教育的第一步是了解孩子。