Remember that the term Rational was intended to signify a discriminating attention to every several thing and freedom from negligence; and that Equanimity is the voluntary acceptance of things which are assigned to thee by the common nature; and the Magnanimity is the elevation of the intelligent part above the pleasurable or painful sensations of the flesh, and above that poor thing called fame, and death, and all such things. If then, thou maintainest thyself in the possession of these names, without desiring to be called by these names by others, thou wilt be another person and wilt enter into another life.
X, 8 - Meditations (c. 161–180 CE) - Book X