在需要技巧的地方，武力没有用武之地。

当天赋不努力时，勤奋会战胜天赋。

智慧就是适应变化的能力。

洛丽塔，我生命之光，我欲念之火。我的罪恶，我的灵魂。洛一丽一塔。

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

"A book is a fragile creature, it suffers the wear of time, it fears rodents, the elements and clumsy hands. So the librarian protects the books not only against mankind but also against nature and devotes his life to this war with the forces of oblivion."

你唯一应该努力超越的人就是昨天的自己。