Timoleon
Plutarch
Plutarch. Plutarch's Lives, Vol. VI. Perrin, Bernadotte, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1918.
but his friends would not suffer this, and brought all manner of entreaty and constraint to bear upon him, so that he made up his mind to live by himself, apart from the world. So he gave up all public life, and for a long while did not even return to the city, but spent his time wandering in great distress of mind among the most desolate parts of the country.
So true is it that the purposes of men, unless they acquire firmness and strength from reason and philosophy for the activities of life, are unsettled and easily carried away by casual praise and blame, being forced out of their native reckonings.
For it would seem that not only our action must be noble and just, but the conviction also from which our action springs must be abiding and unchangeable,