The best time to start building your identity capital is in your 20s.

God expects but one thing of you, and that is that you should come out of yourself in so far as you are a created being made and let God be God in you.

All my life through, the new sights of Nature made me rejoice like a child.

能量守恒定律是经验结果的概括。

不管前方的路有多苦，只要走的方向正确，不管多么崎岖不平，都比站在原地更接近幸福。

格式塔理论的基本“公式”可以这样表达：存在整体，其行为不是由其个别元素决定的，而是部分过程本身由整体的内在性质决定。

如果你不喜欢某件事，就改变它。如果你无法改变它，就改变你的态度。

When you solve a mathematical problem, you don't just get the answer - you understand why it's the answer.