Full Idea
To force a man to curb his desires, as we do by the criminal law, is not nearly so satisfactory as to cause him genuinely to feel the desires which promote socially harmonious conduct.
Gist of Idea
Legally curbing people's desires is inferior to improving their desires
Source
Bertrand Russell (An Outline of Philosophy [1927], Ch 22)
Book Reference
Russell,Bertrand: 'An Outline of Philosophy' [Routledge 1979], p.187
A Reaction
It is hard to disagree, but improving the desires of selfish and even vicious people is a rather challenging task.