Happy the man, of mortals happiest he,
Whose quiet mind from vain desires is free;
Whom neither hopes deceive, nor fears torment,
But lives at peace, within himself content;
In thought, or act, accountable to none
But to himself, and to the gods alone.

Epistle to Mrs. Higgons (1690), line 79; reported in Hoyt's New Cyclopedia Of Practical Quotations (1922), "Contentment", p. 133-36.