Source, in full
No citation to Gladstone found. Hannah More in 1837 in Hints Towards Forming the Character of a Young Princess, The Works of Hannah More, Vol. 4, said the following on p. 179: "On the Whole, we need not hesitate to assert, that in the long course of events, nothing, that is morally wrong, can be politically right. Nothing, that is inequitable, can be finally successful."