Back in the days when greed and opportunism were the driving forces of business, people expounded that "friendship and business don't mix." From first I ever heard the phrase, it rubbed me the wrong way. You see, I draw great joy from friendly collaborations with people, where you know you are contributing to their success and in return, they chip in to yours. Evolutionary biologists remind us that humans are instinctively competitive creatures -- whoever pulls the hardest gets the sandwich. Well, maybe so, but I will die an idealist. I think that we can always do better. Life is about improvement.