The salvation of mankind lies only in making everything the concern of all

Concern should drive us into action and not into a depression. No man is free who cannot control himself

Born out of concern for all beings

To be happy, we must not be too concerned with others

My great concern is not whether you have failed, but whether you are content with your failure

There is a great difference between worry and concern. A worried person sees a problem, and a concerned person solves a problem

Concern should drive us into action, not into a depression