爱情里面要是搀杂了和它本身无关的算计，那就不是真的爱情。

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

The fickleness of the women I love is only equaled by the infernal constancy of the women who love me.

My loneliness is killing me.

The most important questions of life are, for the most part, really only problems of probability.

每个国家都有责任保护我们的海洋，无论其海岸线大小如何。

The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life.

土壤上的每一道拖拉机轨迹，都是传统面容上的一道疤痕。