In the eyes of others a man is a poet if he has written one good poem. In his own he is only a poet at the moment when he is making his last revision to a new poem. The moment before, he was still only a potential poet; the moment after, he is a man who has ceased to write poetry, perhaps forever.
The true men of action in our time those who transform the world are not the politicians and statesmen but the scientists. Unfortunately poetry cannot celebrate them because their deeds are concerned with things, not persons, and are therefore speechless. When I find myself in the company of scientists, I feel like a shabby curate who has strayed by mistake into a drawing room full of dukes.