开放的社会、对知识的无限制获取、人们为促进知识而进行的无计划和不受抑制的联合——这些可能使一个庞大、复杂、不断增长、不断变化、日益专业化和技术化的世界仍然成为一个人类社区的世界。

预测未来的最好方式就是创造未来。

Believe in yourself, you can do it.

拓扑学是对图形在任何变形下保持不变的性质的研究。

Man, unlike any other thing organic or inorganic in the universe, grows beyond his work, walks up the stairs of his concepts, emerges ahead of his accomplishments.