Leopard – Idioms by The Free Dictionary

a leopard can’t change its spots One will stay true to one’s nature, even if one pretends or claims otherwise. After our breakup, he came crawling back, trying to convince me that he’d changed, but I know that a leopard can’t change its spots. See also: change, leopard, spot a leopard doesn’t change its spots One will stay true to one’s nature, even if …

: https://idioms.thefreedictionary.com/leopard