You will meet these people in the later pages. Remember what they said.

...in a lot of mathematical work the use of an appropriate notation makes all the difference

Dijkstra

Each improvement in notation seems ... but a small thing ... yet ... the pen sometimes seems more intelligent than the user.

Jourdain

Symbolisms have invariably been introduced to make things easy.

Whitehead

A good notation has a subtlety and suggestiveness which at times make it almost seem like a live teacher.

Russell

The best notation is no notation. Bad notation can make good exposition bad.

Halmos

Language designers have historically let existent hardware dictate the range of notation allowed in [computer] languages.

Wells

If you need a reference manual, it is not a notation.

Definition by negation

Jail is liberating.

Brooks misquoted

Notation is a better medium for programming than language.

McKeeman's conjecture

What is prevented is an important as what is permitted.

James J. Horning