You get what you tolerate.

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.

理解计算的极限与理解其可能性同样重要。

你越是沉溺于过去，就越少为未来做准备。