The most challenging designs often lead to the most rewarding results.
幸福不是现成的东西。它来自你自己的行动。
宇宙不仅比我们想象的更奇怪,而且比我们能够想象的还要奇怪。
The true teacher defends his pupils against his own personal influence. He inspires self-distrust. He guides their eyes from himself to the spirit that quickens him. He will have no disciple.