Bertrand RussellQuotes（バートランド・ラッセルの名言・警句)

　

It is better to do nothing than to do harm. Half the useful work in the world consists of combating the harmful work. A little time spent in learning to appreciate facts is not time wasted, and the work that will be done afterwards is far less likely to be harmful than the work done by those who need a continual inflation of their ego as a stimulant to their energy.
　Source:The Conquest of Happiness, 1930, chap.16:Effort and resignation.
　More info.:http://russell-j.com/beginner/HA27-060.HTM