I believe there are an infinite number of laws of the universe and that all progress or dreams achieved come from operating in a way that's consistent with them. These laws and the principles of how to operate in harmony with them have always existed. We were given these laws by nature. Man didn't and can't make them up. He can only hope to understand them and use them to get what he wants.
Ray DalioNature gave us pain as a messaging device to tell us that we are approaching, or that we have exceeded, our limits in some way.
Ray DalioOnce you accept that playing the game will be uncomfortable, and you do it for a while, it will become much easier (like it does when getting fit). When you excel at it, you will find your ability to get what you want thrilling.
Ray DalioSometimes 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 Dalio