Freedom is not given, it is taken.

你不能只是坐下来写一本书。书不是那样写出来的。书是通过过你的生活，对世界开放，通过注意来写出来的。

在认识到热是粒子运动后，很容易得出结论：这种运动必然遵循力学的一般规律。

Not necessarily your mother, or indeed mine, but, as it were, the ideal mother, somebody who doesn't care about your achievements. Unfortunately, most people are not our mothers. Most people make a strict correlation between how much time, and if you like, love -- not romantic love, though that may be something -- but love in general, respect --they are willing to accord us, that will be strictly defined by our position in the social hierarchy.