"Life is war, and we all lose, it's the battles that count."
In other words everything in life is about competing against others or circumstance, celebrate all your victories, learn from all battles lost(situations you don't come out on top of), and as long as you're breathing, keep up the struggle, surrender is out of the question and retreat is never proffitable... after all running away from your problems lets them build up steam and come after you again harder.
also
"Treat everyone with respect, and if you are gonna ruin someone's day make sure it's for a damn good reason and do it right."
in other words, respect is something everyone deserves on a basic level, this may be respect due to them by station, by accomplishment, or the kind of respect you give a dangerous wild animal... or if you are in charge and they're not all that bright, the respect you give a good weapon or tool...
and if you have to fire someone, or dump someone, or give them bad news, make sure you do it face to face, and don't soft coat it, people strangely take harsh truths better than prettily coated ones, it's easier to get over something when you get it straight from the get go.
I have many life philosophies and creedos, and I live by a complicated yet straight forward code, those are my main two.