One man's constant is another man's variable.

- Alan Perlis

In English every word can be verbed.

- Alan Perlis

Fools ignore complexity. Pragmatists suffer it. Some can avoid it. Geniuses remove it.

- Alan Perlis

To understand a program, you must become both the machine and the program.

- Alan Perlis

A language that doesn't affect the way you think about programming is not worth knowing.

- Alan Perlis

It is better to have 100 functions operate on one data structure than to have 10 functions operate on 10 data structures.

- Alan Perlis

There are two ways to write error-free programs; only the third one works.

- Alan Perlis

Don't have good ideas if you aren't willing to be responsible for them.

- Alan Perlis

The best book on programming for the layman is Alice in Wonderland, but that's because it's the best book on anything for the layman.

- Alan Perlis