Stoicism
When I read I always and immediately look up any words i don't know the meaning to and I ran across the word "Stoicism" while reading a book on sociology. I didn't know what the word meant till today but I gotta agree with it's philosophy.
It means indifference to pleasure or pain or emotional discipline to whatever happens because of the ultimate naturalness of it.
I think this philosophy can help in any area in life whether it's in business, or an interview where you'd have to curb your enthusiasm to show you have bargaining power, as if showing you don't really need the deal, which in turns makes you more attractive prospect or coping with the death of a love one or anything else you can think of. But I'll definitely do more research on it now since I'm very interested in this philosophy and way of life.