The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

静坐的时候才知道平日的心浮气躁，独自呆着不说话才知道平日言语暴躁多话。反省行为才知道平日心情忙乱，闭门拒绝客友才知平日交友泛滥。少欲望才知道平日多病。近人情才知道平日待人处事的苛刻。

Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.

爱国英雄给民族带来光荣，专制暴君给民族带来灾难。

婴儿不是需要塑造的物品，而是需要展开的人。

球场上最强大的武器是你的头脑。

Sustainability is not just a goal; it's a responsibility we owe to future generations.