Self Interests - Ever Maximizing Function

"Its not out of the benevolence of the butcher, the brewer or the banker, that we expect our dinner, but from their regards to their own interest"

-Adam Smith

These lines make me write again after a short break in posts in this log. I could state multiple reasons for not posting but still it could not be replaced for the act of not doing. There has been a lot change in the environment when I started this blog to this day. People changed , places changed even my self has gone through a lot of changes to adapt to the external environment. Now I sleep and eat at weird timings, because that is the culture here. Should I adapt to that is the biggest question. When I read the above quoted lines today in Baye's book on "Managerial Economics and Business Strategy", this showed it is not that bad to be a self-interested person and after all the whole world is full of them.

That will be my ice-breaking post as a new B School student, after a stint as a software engineer ( I am not sure, can I call myself like this, may be my colleagues can really say). So what made me come here is all I would be briefing more as it would make myself clear and also could be of great help for others who may have Self-Interests in my similar lines.