all emotions can be learned from a purely logical perspective(well love still makes no bloody sense but attachment/dependency translates just fine so i'm pretty sure most people just have no clue what it is themselves). watch someone else experiencing the same emotion over and over. keep down your feelings of disgust... or use them, trying to feel sadness tell yourself over and over you are sad that you have to look at this. eventually when you watch and copy these things for long enough that they become automatic it is like actually having them, it even becomes difficult to separate it. you can force your body to simulate all sorts of things, want to feel empathy.... pump your body full of estrogen, you will feel horrible for quite a while, stress... clenching your butt muscles is enough to fool a polygraph, panic and fear.... start living off of only caffeine and energy drinks focus intently on the concept. in the end it is about focus, why bother focusing on feeling, well sometimes its a survival tool, if it's not i say don't bother..