我不追求风格。我追求一致性。

Common sense tells us that performance comes and goes, but costs go on forever.

It is the duty of a student to get everything out of a teacher， and the duty of a teacher to get everything out of a student.

地球上有黑暗的阴影，但相比之下光明更强大。

数学的美只向更有耐心的追随者展示。