数学中最深刻的见解往往来自最抽象的理论。

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. You can turn over a new leaf every hour if you choose.

压力一直都在，但我试着把它转化为动力。

人总是在接近幸福时倍感幸福，在幸福进行时却患得患失。