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The interplay between local and global phenomena is a recurring theme in number theory.

Existence is a risk, but non-existence is also a risk.

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

For me, the most exciting thing is to see the impact of the work that we do.

當真相被埋葬時，它仍在生長，雖被壓抑，卻積聚著這樣一種力量，一旦爆發，它將炸毀一切，灰飛煙滅。

可持續性不是終點，而是日常實踐。

I don't want to be a star. I want to be an actor.