The one element which is of first importance in scientific management is the task idea.

我不明白为什么人们害怕新想法。我害怕的是旧的想法。

我要在宇宙中留下痕迹。

The most dangerous thing is to be alive. But it is also the most beautiful.

我曾经整天不吃饭，整夜不睡觉，去苦苦思索，结果没有益处，还不如去学习。