The Apple CEO, Tim Cook, has recently published an open letter where he says:
… It’s also given me the skin of a rhinoceros.
I am wondering where this expression "skin of a rhinoceros" is originated from. Allegedly, Eleanor Roosevelt said:
Every woman in public life needs to develop skin as tough as rhinoceros hide.
Is this the origin?
Best Answer
The OED has this quote from the Caledonian Mercury in 1836: