The most profound ideas in mathematics often arise from the simplest observations.

在研究中，坚持和智慧同样重要。

"When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become."

"The true artist is not proud... He is aware that art is infinite and he feels distant from his goal."

我们生来都是疯子。有些人一直如此。

在探索现实的基本性质的追求中，我们必须准备好质疑我们认为我们所知道的一切。

试管婴儿的研究是出于帮助不孕夫妇的愿望。