We toast the Lisp programmer who pens his thoughts within nests of parentheses.

Symmetry is a complexity-reducing concept (co-routines include subroutines); seek it everywhere.

If you have a procedure with 10 parameters, you probably missed some.

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

The string is a stark data structure and everywhere it is passed there is much duplication of process. It is a perfect vehicle for hiding information.

Every program has (at least) two purposes: The one for which it was written and another for which it wasn't.