The spirit of vote by ballot—the interpretation likely to be put on it in the mind of an elector, is that the suffrage is given to him for himself—for his particular use and benefit, and not as a trust for the public.
 John Stuart Mill, Considerations on Representative Government (1861). copy citation

Context

“The present is one of the many instances in which, as I have already had occasion to remark, the spirit of an institution, the impression it makes on the mind of the citizen, is one of the most important parts of its operation. The spirit of vote by ballot—the interpretation likely to be put on it in the mind of an elector, is that the suffrage is given to him for himself—for his particular use and benefit, and not as a trust for the public. For if it is indeed a trust, if the public are entitled to his vote, are not they entitled to know his vote? This false and pernicious impression may well be made on the generality, since it has been made on most of those who of late years have been conspicuous advocates of the ballot.” source