Pleasure, or pain, is not only good, or evil, in itself, but the measure of what is good or evil, in every object of desire or aversion; for the ultimate reason why we pursue one thing, and avoid another, is because we expect pleasure from the former, and apprehend pain from the latter. If we sometimes decline a present pleasure, it is not because we are averse to pleasure itself, but because we conceive, that in the present instance, it will be necessarily connected with a greater pain. In like manner, if we sometimes voluntarily submit to a present pain, it is because we judge that it is necessarily connected with a greater pleasure.

Pleasure has desire in it. Desire is pain. There is no satisfaction. So pleasure is pain.

When pleasure is asserted to be the end of living, we are not then to understand that violent kind of delight or joy which arises from the gratification of the senses and passions, but merely that placid state of mind, which results from the absence of every cause of pain or uneasiness. Those pleasures, which arise from agitation, are not to be pursued as in themselves the end of living, but as means of arriving at that stable tranquility, in which true happiness consists. It is the office of reason to confine the pursuit of pleasure within the limits of nature, in order to the attainment of that happy state, in which the body is free from every kind of pain, and the mind from all perturbation. This state must not, however, be conceived to be perfect in proportion as it is inactive and torpid, but in proportion as all the functions of life are quietly and pleasantly performed. A happy life neither resembles a rapid torrent, nor a standing pool, but is like a gentle stream, that glides smoothly and silently along.

Man's desires are, indeed, innumerable, often hopeless, and sometimes vile, but they may all be rolled together into two: the desire to avoid pain, and the desire to experience pleasure. Every conscious movement made by living beings, from oyster to philosopher, is directed toward the accomplishment of one or both of these ends.

After these matters we ought perhaps next to discuss pleasure. For it is thought to be most intimately connected with our human nature, which is the reason why in educating the young we steer them by the rudders of pleasure and pain; it is thought, too, that to enjoy the things we ought and to hate the things we ought has the greatest bearing on virtue of character. For these things extend right through life, with a weight and power of their own in respect both to virtue and to the happy life, since men choose what is pleasant and avoid what is painful; and such things, it will be thought, we should least of all omit to discuss, especially since they admit of much dispute.

What a strange thing that which men call pleasure seems to be, and how astonishing the relation it has with what is thought to be its opposite, namely pain! A man cannot have both at the same time. Yet if he pursues and catches the one, he is almost always bound to catch the other also, like two creatures with one head.

[P]leasure is in itself a good; nay, even setting aside immunity from pain, the only good: pain is in itself an evil; and, indeed, without exception, the only evil; or else the words good and evil have no meaning. And this is alike true of every sort of pain, and of every sort of pleasure.

True pleasure-joy, happiness and satisfaction-has been the force that helps us move beyond the constant struggle, that helps us live and generate futures beyond this dystopic present, futures worthy of our miraculous lives. Pleasure-embodied, connected pleasure-is one of the ways we know when we are free. That we are always free. That we always have the power to co-create the world.

The inextricable way pleasure and pain are mixed up with each other in this world is a mournful fact to beings who are all the time striving for pleasure alone. In the ideal world there is no pain, no misery. There is nothing but happiness. But in our world pain seems to have been the original feeling, the first one to appear in the evolution of sentiency. Pleasure is a sort of after-thought, a secondary attribute of consciousness which developed later as an aid to pain in keeping living beings straight. Pain is a whip, a penalty. Pleasure is a reward or bribe. Pain is a curse. We are all the time trying to minimize and escape it. In an ideal world the inhabitants never have any impulses that drive them to improper acts. All their impulses are good. Every act is proper and right. Ideal beings need only to live and act in order to be happy. We are not ideal beings. Our world happens to be one affording almost unlimited opportunities for improvement.

Under these circumstances, the life that we live is a contradiction and a conflict. Because consciousness must involve both pleasure and pain, to strive for pleasure to the exclusion of pain is, in effect, to strive for the loss of consciousness. Because such a loss is in principle the same as death, this means that the more we struggle for life (as pleasure), the more we are actually killing what we love.

If it be a point of humanity for man to bring health and comfort to man, and especially to mitigate and assuage the grief of others, and by taking from them the sorrow and heaviness of life to restore them to joy, that is to say, to pleasure, why may it not then be said that nature does provoke every man to do the same to himself?

Pleasure is a false god. Research shows that people who focus their energy on superficial pleasures end up more anxious, more emotionally unstable, and more depressed. Pleasure is the most superficial form of life satisfaction and therefore the easiest to obtain and the easiest to lose. But pleasure, while necessary in life (in certain doses), isn't, by itself, sufficient. Pleasure is not the cause of happiness; rather, it is the effect.

It is not pleasure that makes life worth living. It is life that makes pleasure worth having.

The pursuit of pleasure must be the goal of every rational person.