I realised that to compare your insides with other people's outsides leads to unhappiness.
Never compare your insides to everyone else's outsides.
I think a lot of people compare their insides to other people’s outsides.
She has often felt that her outsides were too dull for her insides, that deep within her there was something better than what everyone else could see.
Who can describe Women's hypocrisies! their subtle wiles, Betraying smiles, feign'd tears, inconstancies! Their painted outsides, and corrupted minds, The sum of all their follies, and their falsehoods.