To write is to remember, and to remember is to resist.

数学是一门活生生的学科，随着新思想的出现而不断发展。

I don't know why people expect art to make sense. They accept the fact that life doesn't make sense.

The child is not a passive recipient of knowledge but an active participant in the learning process.

人真正的祖国是童年。

今天很残酷，明天更残酷，后天很美好，但绝对大部分是死在明天晚上，所以每个人不要放弃今天。