The most sustainable product is the one that already exists.

But it is the same with man as with the tree. The more he seeks to rise into the height and light, the more vigorously do his roots struggle earthword, downword, into the dark, the deep - into evil.

The real test of an algorithm is not just its correctness, but its scalability and robustness.

人们算计太多，思考太少。

Greatness comes from consistency and hard work.

作家必须甘于不适。