Buckminster Fuller said that the key to making your own life a good life was to make other people's lives easier.  It is no secret, but something that almost everyone overlooks: if you want to prosper, help others.

The problem is that the world seems too often to be like a bucket of crabs on a wharf. You know, there is a shallow bucket full of crabs, and on their own any one crab could easily reach up and pull himself up and over the buckets edge to freedom. Problem is that as soon as a single crab starts to pull himself out of the bucket, all the other crabs grab on to him and pull him back.