In a sense the quest for the emancipation of black people in the U.S. has always been a quest for economic liberation which means to a certain extent that the rise of black middle class would be inevitable.
True happiness arises, in the first place, from the enjoyment of one's self, and in the next, from the friendship and conversation of a few select companions.
A brain is a society of very small, simple modules that cannot be said to be thinking, that are not smart in themselves. But when you have a network of them together, out of that arises a kind of smartness.