In exposition and in argument, the writer must likewise never lose his hold upon the concrete; and even when he is dealing with general principles, he must furnish particular instances of their application.

Vigorous writing is concise.

...when a sentence is made stronger, it usually becomes shorter. Thus, brevity is a by-product of vigor.

Never call a stomach a tummy without good reason.

A drawing should have no unnecessary lines and a machine no unnecessary parts.

It is worse to be irresolute than to be wrong.

If you don't know how to pronounce a word, say it loud!