señor señálemelo, doctor reformulemelo

Common sense, though all very well for everday purposes, is easily confused, even by such simple questions as . . . When you feel a pain in the leg that has been amputated, where is the pain? If you say it is in your head, would it be in your head if your leg had not been amputated? If you say yes, then what reason have you for ever thinking you have a leg?

Bertrand Russell