一个人不论年龄多大,都要学习自己不懂的东西。这不是羞耻。
It is not shame for a man to learn that which he knows not,whatever his age.
数据抽象是将特定数据集简化为整体的简化表示。
"Books are the mirrors that reflect our souls."
The beauty of mathematics only shows itself to more patient followers.
——呛弗爵爷的又一条语录