I cannot remember the last time I was unhappy, annoyed or felt jealous. I have read, on some of the answers, references to emotional pain being inevitable. I do not agree. I think it is very possible, but difficult, for one to learn how not to feel 'destructive' emotions, such as anger, jealousy and unhappiness.
If one were to, for instance, lose a friend in a 'tragic' accident, they would be expected to feel upset. I think it's correct to say that this is an illogical feeling; an unfortunate bi-product of the way that we have evolved. I think that if one were to be extremely logical, then they would be able to override the emotions, in the same way that many people can override the nefarious feeling of jealousy, if their spouse seemed to be attracted to another person.
So, with that context, my question is: Do you think/agree it is possible, or even logical, to live one's life without feeling negative emotions?