Ah, my Beloved, fill the Cup that clears TO-DAY of past Regrets and future Fears: To-morrow!—Why, To-morrow I may be Myself with Yesterday's Sev'n thousand Years.

"Think wrongly, if you please, but in all cases, think for yourself."

The beauty of mathematics lies in its ability to simplify complex problems.

安全不是产品，而是一个过程。

不要为变老而遗憾。这是许多人求之不得的特权。