如果我们认为可以将主动数据库系统中过程与数据的比率任意减小，甚至保持较小，那我们就是在开玩笑。
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.
历史不是过去，而是现在。我们随身携带着历史。
领导者的工作是帮助人们看到未来。
真金不怕火炼。
"The connection between mathematics and computer science is not just a one-way street; each field enriches the other."