It was early on in 1965 when I wrote some of my first poems....

It was early on in 1965 when I wrote some of my first poems. I sent a poem to 'Harper's' magazine because they paid a dollar a line. I had an eighteen-line poem, and just as I was putting it into the envelope, I stopped and decided to make it a thirty-six-line poem. It seemed like the poem came back the next day: no letter, nothing.