The greatest wealth is to live content with little.

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 past is a shadow that follows you into the future.

历史不是发生了什么，而是在沉船中幸存下来的东西。

Efficiency is doing things right; effectiveness is doing the right things.

Small actions, multiplied by millions, can transform the world.