Choose the life that is most useful， and habit will make it the most agreeable.

你围绕真相建立生活，然后真相改变了。

你不能像站在水滑梯顶端的孩子那样想太多，你必须滑下去。

The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.

With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.

管理是一门艺术，需要不断地学习和实践。