乐观的基础是纯粹的恐惧。

"The future belongs to those who believe in the beauty of their dreams."

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.

科学是微分方程式，而宗教是边界条件。