Ray Dalio, the largest hedge fund manager in the world, author of the Principles book about your relationships with challenges
For the most part, life gives you so many decisions to make and so many opportunities to recover from your mistakes that, if you handle them well, you can have a terriﬁc life. Of course, sometimes there are major inﬂuences on the quality of our lives that come from things beyond our control—the circumstances we are born into, accidents and illnesses, and so forth—but for the most part even the worst circumstances can be made better with the right approach. For example, a friend of mine dove into a swimming pool, hit his head, and became a quadriplegic. But he approached his situation well and became as happy as anybody else, because there are many paths to happiness.
My point is simply this: Whatever circumstances life brings you, you will be more likely to succeed and ﬁnd happiness if you take responsibility for making your decisions well instead of complaining about things being beyond your control. Psychologists call this having an “internal locus of control,” and studies consistently show that people who have it outperform those who don’t.
So don’t worry about whether you like your situation or not. Life doesn’t give a damn about what you like. It’s up to you to connect what you want with what you need to do to get it and then ﬁnd the courage to carry it through.