Of all tyrannies a tyranny sincerely exercised for the good of its victims may be the most oppressive. God in the Dock (1970)
The more you obey your conscience, the more your conscience will demand of you. Mere Christianity (1952)
God whispers to us in our pleasures, speaks in our conscience, but shouts in our pains: it is His megaphone to rouse a deaf world. The Problem of Pain (1940)