美德比恶行更令人畏惧，因为它的过度不受良心的约束。

领导力是一条双向街道，向上忠诚和向下忠诚。尊重上级；关心下属。

"The more you try to understand the shadow, the less you know."

我不需要理由去变得伟大。

数学让我们看到支配周围世界的隐藏结构。

"To be useful was the best thing the old men ever hoped for themselves, and to be aimless was their worst fear."

任何经济体中最重要的资源是其人民的才能。如果我们不发展这种才能，我们就不会成功。

"The past never leaves us; we carry it in our eyes and in our voices."

假设有效性的唯一相关检验是预测与经验的比较。