Here are two wonderful quotes that I have run across in school lately.
From On Writing, by William Zinsser--
"But you will be impatient to find a 'style'-- to embellish the plain words so that readers will recognize you as someone special. You will reach for gaudy similes and tinseled adjectives, as if 'style' were something you could buy at the style store and drape onto your words in bright decorator colors. (Decorator colors are the colors that decorators come in.) There is no style store; style is organic to the person doing the writing, as much a part of him as his hair, or if he is bald, his lack of it. Trying to add style is like adding a toupee. At first glance the formerly bald man looks young and even handsome. But at second glance-- and with a toupee there's always a second glance-- he doesn't look quite right. The problem is not that he doesn't look well groomed; he does, and we can only admire the wigmaker's skill. The point is that he doesn't look like himself."
From The Writing Life by Annie Dillard--
"Who will teach me to write? a reader wanted to know.
The page, the page, that eternal blankness, the blankness of eternity which you cover slowly, affirming time's scrawl as a right and your daring as necessity; the page, which you cover woodenly, ruining it, but asserting your freedom and power to act, acknowledging that you ruin everything you touch but touching it nevertheless, because acting is better than being here in mere opacity; the page, which you cover slowly with the crabbed thread of your gut; the page in the purity of its possibilities; the page of your death, against which you pit such flawed excellencies as you can muster with all your life's strength: that page will teach you to write."