Every decision we make today shapes the world of tomorrow.
预测未来的最佳方式就是去创造它。
情感的好处就是让我们引入歧途，而科学的好处是不感情用事。
In mathematics, the journey from question to answer is often more enlightening than the answer itself.
The most important political development of the last half century has been the spread of liberal democracy around the world.