There are all sorts of problems in life, as well as many different approaches to solving them, many of which, however, don’t provide real solutions. The causes of suffering are of two types: proximate and ultimate. The proximate causes of suffering are various and changing, and therefore not so important; what we really need to understand is the ultimate cause. The three underlying causes of suffering are greed, hatred, and delusion. But when you thoroughly investigate it, you’ll find that in nine cases out of ten, hatred or aversion is the cause of suffering.

~Khangser Rinpoche~