The approach to style is by way of plainness, simplicity, orderliness, sincerity.

Instead of announcing what you are about to tell is interesting, make it so.

Rich, ornate prose is hard to digest, generally unwholesome, and sometimes nauseating.

In his Philosophy of Style, Herbert Spencer gives two sentences to illustrate how the vague and general can be turned into the vivid and particular: In proportion as the manners, customs, and amusements of a nation are cruel and barbarous, the regulations of its penal code will be severe. In proportion as men delight in battles, bullfights, and combats of gladiators, will they punish by hanging, burning, and the rack.

Remember, it is no sign of weakness or defeat that your manuscript ends up in need of major surgery. This is a common occurrence in all writing, and among the best writers.

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

A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts.