# Pain + Reflection = Progress From Ray Dalio, a brilliant investor, entrepreneur and thinker. His book *Principles* is my second favorite book of all time, behind *How To Win Friends & Influence People*. Let the equation sink in. The only way to move forward is to learn from our mistakes. As uncomfortable as this may be, it is the way things are. Those who embrace this earliest are rewarded the most. For more: [Principles — Ray Dalio](https://www.principles.com/principles/4a903526-2db6-4a0a-9b71-889868f0f475/)