The disruptive powers of excessive national fecundity may have played a greater part in bursting the bonds of convention than either the power of ideas or the errors of autocracy.
It is ideas, not vested interests, which are dangerous for good or evil.
The biggest problem is not to let people accept new ideas, but to let them forget the old ones.
It's not bringing in the new ideas that's so hard; it's getting rid of the old ones.
The idea behind stamped money is sound.
All the political parties alike have their origins in past ideas and not in new ideas and none more conspicuously so than the Marxists .
I am sure that the power of vested interests is vastly exaggerated compared with the gradual encroachment of ideas.
The ideas of economists and political philosophers, both when they are right and when they are wrong, are more powerful than is generally understood. Indeed, the world is ruled by little else.