在苦难时回忆幸福是最深的痛苦。
There is no greater sorrow than to recall happiness in times of misery.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
土地给予我们一切;我们必须回馈一些东西。
每个家庭都是一个团结的小社会,自由和相互之间的感情是他们唯一的纽带。
The most hateful thing for a man is to have knowledge of everything but power over nothing.
流放不是地点,而是一种状态。