城市的穷人就像树的根；看不见，但对它的生命至关重要。

True innovation comes from listening to your customers and having the courage to act on what you hear.

The scientific study of behavior must be based on objective, measurable data.

与人谈话时尽可以积德，与妻子儿女融洽相处也是修身养性的好机会。