Coal miners are the unsung heroes of America's industrial strength.
世界上到处都是试图互相修补的破碎之人。
人们花在身体上的金钱和精力，如果用在心灵上，可能会带来更大的收益。
Leadership is about making tough decisions today that will benefit everyone tomorrow.
The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.
The best farmers don't just raise animals; they cultivate ecosystems.
一个人要知道自己的位置，就像一个人知道自己的脸面一样，这是最为清醒的自觉。