Remember this clearly: every person acts based on how things appear to them. If something seems good to them, you can't blame them for acting on it. If it seems bad, they're the ones who pay the price. The person who is deceived and the person who suffers are the same person — you can't separate them. If you remember this, you won't get angry at anyone. You won't be annoyed with anyone. You won't insult or blame anyone. You won't hate or fight with anyone.
Whoever then clearly remembers this, that to man the measure of every act is the appearance (the opinion), whether the thing appears good or bad. If good, he is free from blame; if bad, himself suffers the penalty, for it is impossible that he who is deceived can be one person, and he who suffers another person—whoever remembers this will not be angry with any man, will not be vexed at any man, will not revile or blame any man, nor hate, nor quarrel with any man.