Meditations by Marcus Aurelius Book 7 Page 11

their contraries; thou mayst look to that thyself, that it suffer nothing. Induce her not to any such opinion or persuasion. The understanding is of itself sufficient unto itself, and needs not (if itself doth not bring itself to need) any other thing besides itself, and by consequent as it needs nothing, so neither can it be troubled or hindered by anything, if itself doth not trouble and hinder itself.

XIV. What is rv&nfLovia, or happiness: but a7o &dwv, or, a good darnon, or spirit? What then dost thou do here, O opinion? By the Gods I adjure thee, that thou get thee gone, as thou earnest: for I need thee not. Thou earnest indeed unto me according to thy ancient wonted manner. It is that, that all men have ever been subject unto. That thou camest therefore I am not angry with thee, only begone, now that I have found thee what thou art.