【译文】孔子说：“经常学习，不也喜悦吗？远方来了朋友，不也快乐吗？得不到理解而不怨恨，不也是君子吗？”

Writing is a matter of finding a voice, and then having the courage to use it.

Think of all the psychic energy expended in seeking a fundamental distinction between "algorithm" and "program".

儿童书籍应该充满温暖，而不仅仅是说教。

我的箴言一贯如此：英雄不问来路。