Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.
未来不是现在提供的替代路径中选择的结果,而是一个被创造的地方——首先在思想和意志中创造,然后在活动中创造。
聪明不是不犯错误,而是很快发现改正错误的方式。