The power of abstraction is what allows mathematics to transcend the limits of physical reality.

Every artist dips his brush in his own soul, and paints his own nature into his pictures.

我无法一直在你身边。

The debate isn't 'coal vs. renewables'—it's how to integrate both during the transition.

婚姻好比鸟笼，外面的鸟想进 进不去；里面的鸟儿想出出不来。