Make your own mistakes. Marcus Aurelius 4.11
See only what you see, not what interested parties expect you to see.
Μὴ τοιαῦτα ὑπολάμβανε, οἷα ὁ ὑβρίζων κρίνει ἢ οἷά σε κρίνειν βούλεται, ἀλλὰ ἴδε αὐτά, ὁποῖα κατ᾽ ἀλήθειάν ἐστιν.
Μὴ τοιαῦτα ὑπολάμβανε, οἷα ὁ ὑβρίζων κρίνει ἢ οἷά σε κρίνειν βούλεται, ἀλλὰ ἴδε αὐτά, ὁποῖα κατ᾽ ἀλήθειάν ἐστιν.
Never assume for
yourself the premises that a criminal assumes, or that he wants you
to assume. Instead, see only what your eye shows you in truth.