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.

The battle of life is already half won by the young man who is brought personally in contact with high officials; and the great aim of every boy should be to do something beyond the sphere of his duties--something which attracts the attention of those who over him.

摆脱诱惑的唯一方法就是屈服于它。

Common sense tells us that performance comes and goes, but costs go on forever.

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.