An act of goodness is of itself an act of happiness.

外交家应该具备尊重和理解其他国家和文化的能力，以及跨越语言和文化障碍进行沟通的能力。

The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.

The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.

The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.

The beauty of a woman is not in a facial mode but the true beauty in a woman is reflected in her soul. It is the caring that she lovingly gives the passion that she shows. The beauty of a woman grows with the passing years.

机器学习中的挑战不仅仅是发现数据中的模式，而是发现能够推广到新的、未见过的数据的模式。