I have found it helpful to develop my own simple philosophy of life. I call this philosophy The New Mandate. It is very short and sweet so read carefully in case you miss it:
I shall attempt to direct my efforts toward the betterment of those around me and to the benefit of humanity
I shall not disadvantage or otherwise cause harm to another
I shall take extraordinary steps to help those who are in need
The New Mandate is based on the concept that every human being has an innate understanding of what is right and what is wrong; and that this innate knowledge varies little despite the diversity of our races, cultures and societies.
As the word mandate implies, this simple philosophy gives power to the ubiquitous human desire to better ourselves by bettering the world around us; and stands in stark contrast to the "old mandate", where greed and selfish desires fashion the mechanisms of personal and social development.