The stream of thought is a stream of life-sustaining acts.

我不让未来吓到我，我让它激励我。

在数学中，你并不理解事物。你只是习惯了它们。

当今煤炭行业的挑战需要大胆的领导力和远见。

Every human being has hundreds of separate people living under his skin. The talent of a writer is his ability to give them their separate names, identities, personalities and have them relate to each other.

数学的历史是人类思想和进步的历史。