Always happy. Being happy is just turning on the brain subsystems that handle that state of mind. However, this isn't necessarily a good thing. I believe being unhappy and even depressed have evolutionary basis for existing. Being unhappy is NOT the same as being depressed, they are completely different. Being unhappy is probably an evolutionary strategy to force you out of your current territory into new territory. Being depresses is probably designed to keep you in one place and to stop you from expending energy on unecessary risk in times where chance of good luck is low. Being happy all the time means you are always pursuing new entrepreneurial opportunities and just like in a casino the house always wins and most people that pursue this strategy end up losing.