益：更加；势：权势。道德越高尚，为人处事好，就越安全；权势越大，更容易滥用权力，刚愎自用，就越危险。
More moral strength increases one's safety, more power and influence increases one's danger (idiom, from Records of the Historian 史记). cf Unlimited power is apt to corrupt the minds of those who possess it (William Pitt the Elder, 1770).
