革命是一场漫长而艰苦的斗争，但它是实现真正独立和自由的唯一途径。

Grit is passion and perseverance for very long-term goals.

Solitude is indeed dangerous for a working intelligence.We need to have around us people who think and speak.When we are alone for a long time we people the void with phantoms.

今天种下的每一棵树都是留给后代的遗产。