Geometry is knowledge of the eternally existent.
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
"We are all alone, born alone, die alone, and—in spite of True Romance magazines—we shall all someday look back on our lives and see that, in spite of our company, we were alone the whole way."
一本书永远是通往另一个世界的敞开之门。