out the kindness of (one's) heart(redirected from out of the kindness of their heart)
out the kindness of (one's) heart
Because of one's altruistic generosity or goodwill, without personal or ulterior motivations. You expect me to believe you would do this out of the kindness of your heart? Come on, what are you looking for in return?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.