可能近似正确（PAC）学习的概念在计算学习理论中具有基础性意义。
The older I get， the more wisdom I find in the ancient rule of taking first things first—a process which often reduces the most complex human problem to a manageable proportion.
Mathematics is the art of giving the same name to different things.
I don’t fear anyone, but I respect everyone.
It is a curious subject of observation and inquiry, whether hatred and love be not the same thing at bottom.
To win Wimbledon is a dream. To win it eight times is something I can’t even describe.
世界是一个阴谋，目的是不让你知道真相。
我只是在寻找快乐的方式。