The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
数学不知道种族或地理界限;对于数学来说,文化世界是一个国家。
制作精良的纽扣眼是艺术与自然间的唯一连接。
On marketing: "In the old world, you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world, that inverts."
一本好书是一个永远不会让你失望的朋友。