I don't understand why asking people to eat a well-balanced vegetarian diet is considered drastic, while it is medically conservative to cut people open and put them on cholesterol-lowering drugs for the rest of their lives.
—Dean Ornish, MD
alliteration
The repetition of the same or similar sounds at the beginning of words: "What would the world be, once bereft/Of wet and wildness?" (Gerard Manley Hopkins, "Inversnaid")