translate these sentences into Chinese The whole subject of happiness has, in my opinion, been treated too solemnly. It had been thought that man cannot be happy without a theory of life or a religion. Perhaps those who have been rendered unhappy by a bad theory may need a better theory to help them to recovery, just as you may need a tonic when you have been ill. But when things are normal a man should be healthy without a tonic and happy without a theory. It is the simple things that really matter.