affected into account, and “everybody must count for one and nobody for more than one.” This comment is an integral part of the original formula. As between the happiness of his father, his child, or himself, and the happiness of a stranger, a man must be impartial. He must only consider the quantity of pleasure secured or pain inflicted.
Now, in this conception of measurable quantities of pleasure and pain there is, as many critics have insisted, something unreal and academic. We shall have to return to the point, but let us first endeavour to understand the bearing of Bentham’s teaching on the problems of his own time and on the subsequent development of Liberal thought. For this purpose we will keep to what is real in his doctrine, even if it is not always defined with academic precision. The salient points that we note, then, are (1) the subordination of all considerations of right to the considerations of happiness, (2) the importance of number, and (3) as the other side of the same doctrine, the insistence on equality or impartiality between man and man. The common utility which Bentham considers is the happiness experienced by a number of
