djbt, to say that happiness is a feeling that is better than no feeling is not wrong. It is true after all.
But it does not separate the feeling of happiness from all the other feelings one can experience, so the definition is not much use in this case.
I see you have included physical pain to the list, and I'm not sure I agree. Physical pain is sensation while I had the impression we were talking feelings as in emotions. People can be driven to madness by pain, and in madness do all kinds of strange things.
But overall, a person who is in love, -and feel free to ask anybody, this person would rather have the feeling of hate in her heart than no feeling when love vacates the premisis along with the cheating boyfriend. No, I maintain my stand, that all feeling is better than no feeling.
Quote:The point is that everyone can distinguish between what is pleasurable and what is painful for them, and it is this that utilitarianism takes into account
Can everyone do that? In the long run too? Sometimes poison tatses like the sweetest fruits, and the traps you walk into aren't the ones you are aware of. I agree that you can divide your experiences into pleasurable and painful, but when it comes to the future none of us have any idea what will bring pleasure to it. We have hopes about it, and I'm not even sure that is always a good thing...