一个试图教学而不激发学生学习欲望的教师，就像在冷铁上敲打。
A teacher who is attempting to teach without inspiring the pupil with a desire to learn is hammering on cold iron.
Every ending is a beginning in disguise.
像所有的成人一样，幼儿也有他独立的人格。
我喜欢创作既易于理解又有深度的作品。
The human being is the only animal that thinks about the future.
The Langlands program is a vision of how mathematics could be unified in a single framework.