Every ton of ore we extract carries with it a responsibility to the future.

The best literature is always subversive, unsettling what is established, questioning authority.

No comment is a splendid expression. I am using it again and again.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

善可以存在于没有恶的情况下，而恶无法在没有善的情况下存在。