
As he gets richer and richer it become easier and easier to make money, until at last five minutes a day will bring him more than he knows how to spend. The poor man is thus left at a loose end as a result of his success. This must inevitably be the case so long as success itself is represented as the purpose of life. Unless a man has been taught what to do with success after getting it, the achievement of it must inevitably leave him a prey to boredom.
Source:The Conquest of Happiness, 1930, chap.3:Competition
More info.:http://russell-j.com/beginner/HA13-050.HTM