语言是内在世界与外在世界之间的桥梁。

"The heart has its reasons which reason knows not."

We kid ourselves if we think that the ratio of procedure to data in an active data-base system can be made arbitrarily small or even kept small.

Hope can be a powerful force. Maybe there's no actual magic in it, but when you know what you hope for most and hold it like a light within you, you can make things happen, almost like magic.

In theory, there is no difference between theory and practice. But, in practice, there is.