All eminent men have made personal enemies, or, have done something, or at the lowest, professed some opinion obnoxious to some local or other considerable division of the community, and likely to tell with fatal effect upon the number of votes; whereas a man without antecedents, of whom nothing is known but that he professes the creed of the party, is readily voted for by its entire strength.
 John Stuart Mill, Considerations on Representative Government (1861). copy citation

Context

“And this, as I have before observed, is no accident, but the natural effect of the situation. The eminent men of a party, in an election extending to the whole country, are never its most available candidates. All eminent men have made personal enemies, or, have done something, or at the lowest, professed some opinion obnoxious to some local or other considerable division of the community, and likely to tell with fatal effect upon the number of votes; whereas a man without antecedents, of whom nothing is known but that he professes the creed of the party, is readily voted for by its entire strength. Another important consideration is the great mischief of unintermitted electioneering. When the highest dignity in the state is to be conferred by popular election once in every few years, the whole intervening time is spent in what is virtually a canvass.” source