From David Chapman’s instructive essay ‘How to Think Real Good,’
Learn from fields very different from your own. They each have ways of thinking that can be useful at surprising times. Just learning to think like an anthropologist, a psychologist, and a philosopher will beneficially stretch your mind.
I’ve always been an admirer of the “Renaissance Man”—the notion that one should try to embrace multiple knowledges and develop one’s own faculties as broadly as possible. An archaeologist who studies only material culture will think similar thoughts to a second archaeologist who studies only material culture. However, an archaeologist whose studies also include anthropology, biology, geology, and metallurgy has the wherewithal to pursue her curiosity down disparate channels and synthesize multiple perspectives.
Idea for Impact: Dabble in multiple disciplines intermittently and try to understand the basic thinking model of each discipline. You’ll think more broadly, redefine problems outside of normal boundaries, and reach solutions anchored in a unique understanding of complex situations.
Yesterday’s New York Times 
A generation ago, mortgage rates were 6–10%. With interest rates that high, paying off your mortgage was a no-brainer. Today, however, interest rates are 2.5–4%, making a different story. You could pay off your mortgage quicker if you’d like. But with the low-interest rates today, you may want to consider investing instead of paying off the low-interest debt. The average stock market return for .jpg "'Total Money Makeover' by Dave Ramsey (ISBN 1595555277)")
Most decisions aren’t “good” or “bad;” most fall somewhere in the middle.
Many aspects of life can get you sidetracked and distraught. Finding a place to 
Consider a family with four drivers and one car. Being a one-car family isn’t always convenient or even pleasant. Creative solutions can’t emerge if the family asks, “How could we make the car available to everybody who needs it when they need it?” If, instead, they ask, “How can we each meet our needs without using the car?” Mom can join a carpool to work. Dad can combine his trips when he runs errands once a week. The kids can ride their bikes whenever the weather favors. If the family needs to be in two places at the same time, somebody can Uber. Coordinating can be annoying, but with a bit of flexibility and communication, getting by with one car can easily be pulled off.
Of particular importance are the “management failures,” “inherent conflicts of interest,” and “grossly insufficient oversight” at both Boeing and its 
Parenthetically, the underlying problem that led to the David Dao incident wasn’t unique to United. The incident could have happened at other airlines. All airlines had similar policies regarding involuntary-denied boarding and prioritizing crew repositioning. Every other airline, I’m sure, felt lucky the David Dao incident didn’t happen on their airline.