The value of freedom is truly understood only when lost.
解释：不谦让， 就会不团结; 不团结， 就不可以出师远征。
Coal miners don't just dig in the dirt, they dig for progress.
未来并非一个固定的点，而是一系列从当下分叉的可能性。
If you are not willing to learn, no one can help you. If you are determined to learn, no one can stop you.
We die containing a richness of lovers and tribes, tastes we have swallowed, bodies we have plunged into and swum up as if rivers of wisdom, characters we have climbed into as if trees, fears we have hidden in as if caves.
People with a sense of fulfillment think it a good world and would like to conserve it as it is, while the frustrated favor radical change.
The course of development consists simply in this; that in each generation the two parental traits appear, separated and unchanged.