Plato speaking in his person, expressly repudiates the notion that the exchange of a less pleasure for a greater can be an exchange of virtue. Such virtue is the virtue of ordinary men who live in the world of appearance; they are temperate only that they may enjoy the pleasures of intemperance, and courageous from fear of danger. Whereas the philosopher is seeking after wisdom and not after pleasure, whether near or distant: he is the mystic, the initiated, who has learnt to despise the body and is yearning all his life long for a truth which will hereafter be revealed to him. In the Republic the pleasures of knowledge are affirmed to be superior to other pleasures, because the philosopher so estimates them; and he alone has had experience of both kinds. (Compare a similar argument urged by one of the latest defenders of Utilitarianism, Mill's Utilitarianism). In the Philebus, Plato, although he regards the enemies of pleasure with complacency, still further modifies the transcendentalism of the Phaedo. For he is compelled to confess, rather reluctantly, perhaps, that some pleasures, i.e. those which have no antecedent pains, claim a place in the scale of goods. There have been many reasons why not only Plato but mankind in general have been unwilling to acknowledge that 'pleasure is the chief good.' Either they have heard a voice calling to them out of another world; or the life and example of some great teacher has cast their thoughts of right and wrong in another mould; or the word 'pleasure' has been associated in their mind with merely animal enjoyment. They could not believe that what they were always striving to overcome, and the power or principle in them which overcame, were of the same nature. The pleasure of doing good to others and of bodily self-indulgence, the pleasures of intellect and the pleasures of sense, are so different:--Why then should they be called by a common name? Or, if the equivocal or metaphorical use of the word is justified by custom (like the use of other words which at first referred only to the body, and then by a figure have been transferred to the mind), still, why should we make an ambiguous word the corner-stone of moral philosophy? To the higher thinker the Utilitarian or hedonist mode of speaking has been at variance with religion and with any higher conception both of politics and of morals. It has not satisfied their imagination; it has offended their taste. To elevate pleasure, 'the most fleeting of all things,' into a general idea seems to such men a contradiction. They do not desire to bring down their theory to the level of their practice. The simplicity of the 'greatest happiness' principle has been acceptable to philosophers, but the better part of the world has been slow to receive it.