Writing for children is a responsibility—they deserve the truth, even when it's hard.

言语是内在世界和外在世界之间的桥梁。

The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.

具备文化素养意味着拥有在现代社会中茁壮成长所需的基本信息。

真理，之于宗教，只不过是一些能被保存下来的观点。