THE man who is unrestrained, who hath all things in his power as he wills, is free; but he who may be restrained, or compelled, or hindered, or thrown into any condition against his will, is a slave. "And who is unrestrained?" — He that desires none of those things that belong to others. "And what are those things which belong to others?" — Those which are not in our own power, either to have or not to have.
EPICTETUS. DISCOURSES. Book iv. §1, ¶14.
THE things themselves (which either to get or to avoid thou art put to so much trouble) come not unto thee themselves; but thou in a manner goest unto them. Let then thine own judgment and opinion concerning those things be at rest; and as for the things themselves, they stand still and quiet, without any noise or stir at all; and so shall all pursuing and flying cease.
MARCUS AURELIUS. MEDITATIONS. Book xi. 10.