实现明天的唯一限制是我们今天的疑虑。
The only limit to our realization of tomorrow is our doubts of today.
想要变得富有，就去积攒所有那些金钱买不来的东西吧。
去爱就是要变得脆弱。
Human cognition is best understood as a hierarchy of information processing levels.
The aim of education should be to teach us rather how to think, than what to think—rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men.