To signal an emergency， use the rule of three； 3 shouts， 3 horn blasts， or 3 whistles.

"I think children are naturally curious and open to new ideas, and that's something I try to capture in my books."

一本好的图画书就像一个好笑话——需要完美的时机。

The design of a system should be guided by the principle of least surprise, where the behavior of components is intuitive and predictable.

真相总是残酷的。

That is what we have to do in life: to take the great wounds and the little scratches and keep on going.