数学家是将咖啡转化为定理的装置。

And when his audience grew bored, he would spring into the air and do a back flip with a half twist.

True leadership is about serving others, not yourself.

儿童有一种特殊的敏感性，集中体现他去吸收周围的一切。

在这个行业里，你必须大胆，但绝不能鲁莽。