解释：三人谎传市上有老虎，人们就真的以为有老虎了，十个人揉铁锥，就能把铁锥弄弯曲。
The most important thing is to be honest with yourself.
The PAC learning framework provides a formal way to quantify the learnability of a concept class.
教师的最大幸福就是把一群群孩子送往理想的彼岸。
安全不是产品的附加功能，而是基石。
The sea, the sea, the sea. It rolls and rolls and calls to me.