Sometimes we forge our own principles and sometimes we accept others' principles, or holistic packages of principles, such as religion and legal systems. While it isn't necessarily a bad thing to use others' principles - it's difficult to come up with your own, and often much wisdom has gone into those already created - adopting pre-packaged principles without much thought exposes you to the risk of inconsistency with your true values.
Ray DalioWhen growth is slower than expected, stocks go down. When inflation is higher than expected, bonds go down. When inflation's lower than expected, bonds go up.
Ray Dalio