I just watched Simon Sinek's talk If You Don't Understand People, You Don't Understand Business posted by The 99 Percent (via SwissMiss) and am blown away by the wisdom in it. He speaks specifically about the importance of authenticity and trust when it comes to business; however, he is really getting towards what it means to be human in general. It is definitely worth the watch, but if you are short on time, skip to around minute 18 and listen for a bit.
those only are happy who have their minds fixed on some object other than their own happiness; on the happiness of others, on the improvement of mankind, even on some art or pursuit, followed not as a means, but as itself an ideal end. aiming thus at something else, they find happiness by the way. [ john stuart mill ]