The worst sin... is... to be indifferent.
— George Bernard Shaw

A different world cannot be built by indifferent people.
Peter Marshall indifferent quote

Many a man thinks he is patient when, in reality, he is indifferent.
— B. C. Forbes

Pain has its reasons, pleasure is totally indifferent.
— Francis Picabia

Bad people are less a problem than indifferent people.
— Gerhard Kocher