Life is tons of discipline. Your first discipline is your vocabulary; then your grammar and your punctuation Then, in your exuberance and bounding energy you say you're going to add to that. Then you add rhyme and meter. And your delight is in that power.
Poetry begins in trivial metaphors, pretty metaphors, "grace" metaphors, and goes on to the profoundest thinking that we have. Poetry provides the one permissible way of saying one thing and meaning another. People say, "Why don’t you say what you mean?" We never do that, do we, being all of us too much poets. We like to talk in parables and in hints and in indirections - whether from diffidence or some other instinct.
Like a piece of ice on a hot stove the poem must ride on its own melting. . . . Read it a hundred times; it will forever keep its freshness as a metal keeps its fragrance. It can never lose its sense of a meaning that once unfolded by surprise as it went.
Trust him to have his bitter politics
Against his unacquaintances the rich
Who sleep in houses of their own, though mortgaged.
Conservatives, they don't know what to save.