Why? Anyone who has or inherits $10 billion can give it away. It takes nearly no skill. Only a very, very few people in the history of history can make $10 billion.
Well, I pretty sure that after a certain amount you become somewhat numb by gaining anymore. With giving you would get a sense of doing good for those you might need it more than you.
My comment wasn't really about the actual amount, but rather just in general the happiest people are the ones that give more than receive.
