The greatest weapon against stress is our ability to choose one thought over another.

A writer is someone who pays attention to the world.

Every discovery in science is built upon the work of countless others before us.

Teaching is not about imparting everything, but about guiding at the right moment.

未来不是由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。