Full Idea
The supreme moral rule should be: Act so as to produce harmonious rather than discordant desires.
Gist of Idea
Act so as to produce harmonious rather than discordant 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
Russell makes no reference to Kant, but this is obviously intended to rebut the more rationalist Kantian view of what is imperative. The use of 'harmonious' chimes in best with Plato's account of the soul in 'Republic'.
Related Idea
Idea 2155 True goodness requires mental unity and harmony [Plato]