ปีที่ ๓๘ ฉบับที่ ๒ เมษายน-มิถุนายน ๒๕๕๖

ภัทรพร สิริกาญจน 171 วารสารราชบัณฑิตยสถาน ป ที่ ๓๘ ฉบับที่ ๒ เม . ย .- มิ . ย . ๒๕๕๖ Abstract Utilitarianism in John Stuart Mill’s On Liberty Pataraporn Sirikanchana Associate Fellow of the Academy of Moral and Political Sciences, The Royal Institute, Thailand On Liberty is a famous work by John Stuart Mill. Its subject matter illustrates the meaning of liberty and necessary possession of personal freedom which is fundamental for all human beings. Personal freedom is supported by utilitarianism and democracy and cannot exist without social freedom. Besides, personal freedom can initiate freedom of thought leading to the utmost of human utility. Mill promotes the Principle of Utility that the best action is to produce the greatest happiness for the greatest number (of people). The meaning of the Principle indicates his support for the people who are the ruled and the majority of the state. Nevertheless, Mill is well aware that the government of the majority may give rise to the tyranny of majority. He asserts that such problem can be solved by the expansion of education, especially on right, liberty, and duty of all social members, which is essential to democracy. keywords : utilitarianism, liberty, freedom, right, duty 152-171 Mac9.indd 171 10/8/13 7:25 PM