正义是一种非理性的理想。尽管它对人类的意志和行动不可或缺，但它并不属于认知的范畴。
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
一本好的图画书是艺术家与孩子之间的无声对话。
Walls define space, but openings connect it to the world.
The mind is a dynamic system of processes.
A good illustration doesn't just accompany text - it converses with it.