And still drink knowledge, wine-drenched every turn,—

Equally favored by their opposites.

Little and Bad exist, are natural:

Then let me know them, and be twice as great

As he who only knows one phase of life!

So doubly shall I prove 'best friend of man,'

If I report the whole truth—Vice, perceived

While he shut eyes to all but Virtue there.

Man 's made of both: and both must be of use

To somebody: if not to him, to me.