It is in our power to have no opinion about a thing, and not to be disturbed in our soul; for things themselves have no natural power to form our judgments.
 Marcus Aurelius, Meditations (c. 170 - 180). copy citation

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Author Marcus Aurelius
Source Meditations
Topic power judgment
Date c. 170 - 180
Language English
Reference
Note Translated by George Long
Weblink https://www.gutenberg.org/files/15877/15877-h/15877-h.htm

Context

“+ 51. He who loves fame considers another man's activity to be his own good; and he who loves pleasure, his own sensations; but he who has understanding considers his own acts to be his own good. 52. It is in our power to have no opinion about a thing, and not to be disturbed in our soul; for things themselves have no natural power to form our judgments. 53. Accustom thyself to attend carefully to what is said by another, and as much as it is possible, be in the speaker's mind. 54. That which is not good for the swarm, neither is it good for the bee.” source