最有趣的空间是那些介于两者之间的空间——意义在其中产生的缝隙。
The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.
The only way of discovering the limits of the possible is to venture a little way past them into the impossible.