And with pains equal held it my concern,
When I myself was satisfied, to find
Means to pass truths into another mind.
No less a duty, if thou undertake,
Wilt thou betray, if thou should then forsake!
Away with mean cares; give, if aught, thy whole—
The sum of Reason—that which makes the Soul!
Philosophy
Bk. II. vv. 1-60