Men are not fond of paying large sums for leave to perform a laborious duty.
 John Stuart Mill, Considerations on Representative Government (1861). copy citation

Context

“There is scarcely any mode in which political institutions are more morally mischievous—work greater evil through their spirit—than by representing political functions as a favor to be conferred, a thing which the depositary is to ask for as desiring it for himself, and even pay for as if it were designed for his pecuniary benefit. Men are not fond of paying large sums for leave to perform a laborious duty. Plato had a much juster view of the conditions of good government when he asserted that the persons who should be sought out to be invested with political power are those who are personally most averse to it, and that the only motive which can be relied on for inducing the fittest men to take upon themselves the toils of government is the fear of being governed by worse men.” source