Instead of announcing what you are about to tell is interesting, make it so.
A drawing should have no unnecessary lines and a machine no unnecessary parts.
Rich, ornate prose is hard to digest, generally unwholesome, and sometimes nauseating.
It is worse to be irresolute than to be wrong.
Never call a stomach a tummy without good reason.
...when a sentence is made stronger, it usually becomes shorter. Thus, brevity is a by-product of vigor.