In recent years ethical discussion has centred round the problem of the relation between the idea of right and the idea of good. Previously it had been more or less generally assumed that moral philosophy was principally concerned with the idea of good, and followed its course by asking such questions as: What is the meaning of good? or, What are the characteristics which anything must have in order to be good? or even, What things are good? The idea of right was generally regarded as subordinate, and it was perhaps more often implied than stated that an action was right if by it something good was realized.