勇敢就是无条件地爱一个人，而不期待任何回报。
To be brave is to love someone unconditionally, without expecting anything in return.
The new leader is a facilitator, not an order giver.
量子力学让我们能够做到经典物理学中不可能的事情。
Freedom of the press is not just important to democracy, it is democracy.
我相信努力、纪律和尊重。
The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.