"A good picture book is like a good joke - it needs perfect timing."
一本好的图画书就像一个好笑话——需要完美的时机。
The most exciting moments in mathematics are when you realize that two seemingly unrelated areas are deeply connected.
In a state where corruption abounds， laws must be very numerous.
The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
The act of creation is an act of transcendence.
