模型不是水晶球，但它们是理解未来的最佳工具。
Models are not crystal balls, but they are the best tools we have to understand the future.
我们最高的努力必须是培养自由的人类，他们能够自己赋予生活目的和方向。
成功是我唯一的选择，失败不是。
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
心是指南针，但并不总指向北方。