“For a start, don’t be carried away by [the impression’s] vividness, but say: Wait for me a bit, impression; let me take a look at you and what you are about, let me test you. Next, don’t let it lead you on by painting a picture of what comes next. Otherwise, it is off and away, taking you wherever it wishes. Instead, confront it with another impression, a fine and noble impression, and dismiss this foul one.”