On a Quiet Conscience

Close thine eyes, and sleep secure;

Thy soul is safe, thy body sure.
He that guards thee, He that keeps,
Never slumbers, never sleeps.
A quiet conscience in thy breast
Has only peace, has only rest.
The wisest and the mirth of kings
Are out of tune unless she sings:
Then close thine eyes in peace and sleep secure,
No sleep so sweet as thine, no rest so sure.

CHARLES THE FIRST