Children totally accept — and crave — family rules. “In our family we have a rule for X” is the only excuse a parent needs for setting a family policy. In fact， “I have a rule for X” is the only excuse you need for your own personal policies.

The future is not something we enter. The future is something we create.

The only difference between a rat and a human is that a rat learns from experience.

我对迷失并试图找到自己位置的想法感兴趣。

数学中最重要的是理解概念，而不仅仅是记忆公式。