John Stuart Mill

“Actions are right in proportion as they tend to promote happiness, wrong as they tend to produce the reverse of happiness.”

“The only purpose for which power can be rightfully exercised over any member of a civilised community, against his will, is to prevent harm to others.”

“These two methods may be respectively denominated, the Method of Agreement, and the Method of Difference.”

“Petitio Principii, as defined by Archbishop Whately, is the fallacy in which the premise either appears manifestly to be the same as the conclusion, or is actually proved from the conclusion.”

“A completely popular government is the only polity which can make out any claim to this character. It is pre-eminent in both the departments between which the excellence of a political Constitution is divided.”