Writing improves in direct ratio to the things we can keep out of it that shouldn't be there.
William ZinsserThere's no subject you don't have permission to write about. Students often avoid subjects close to their heart ... because they assume that their teachers will regard those topics as 'stupid.' No area of life is stupid to someone who takes it seriously. If you follow your affections you will write well and will engage your readers.
William ZinsserWriting is not a special language that belongs to a few sensitive souls who have a 'gift for words'. Writing is the logical arrangement of thought. Anyone who thinks clearly should be able to write clearly---about any subject at all.
William ZinsserDon't hedge your prose with little timidities. Good writing is lean and confident. . . . Every little qualifier whittles away some fraction of the reader's trust. Readers want a writer who believes in himself and in what he is saying. Don't diminish that belief. Don't be kind of bold. Be bold.
William Zinsser