"It is a good lesson - though it may often be a hard one - for a man... to step aside out of the narrow circle in which his claims are recognized, and to find how utterly devoid of significance, beyond that circle, is all that he achieves, and all he aims at."

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Appearances to the mind are of four kinds. Things either are what they appear to be; or they neither are, nor appear to be; or they are, and do not appear to be; or they are not, and yet appear to be. Rightly to aim in all these cases is the wise man's task.

— Epictetus