Because authority, though it err like others,
Hath yet a kind of medicine in itself
That skins the vice o' th' top; go to your bosom,
Knock there, and ask your heart what it doth know
That's like my brother's fault; if it confess
A natural guiltiness such as is his,
Let it not sound a thought upon your tongue
Against my brother's life.
— William Shakespeare
Self-examination