We’ve all been there, done that: When the markets grow volatile, they can literally make your stomach churn. As a team member of Hill Investment Group, I know better than to get too hung up on the never-ending breaking news in the popular financial press, but I do still find it helpful to read the perspectives of other thought leaders who are as committed as we are to evidence-based investing.

Here are two such pieces published during the recent jolts of market volatility. I found them helpful; I hope you do too:

“When Investing in Stocks Makes You Feel Like Throwing Up and You Do It Anyway,” by Jason Zweig of The Wall Street Journal

Zweig reflects on how awful it felt to stay invested during the Great Recession, but how glad he is now that he overcame his deepest doubts: “A happy few investors, among them Warren Buffett, his business partner Charles Munger and their mentor Benjamin Graham, may have long-term thinking built into them by nature. The rest of us have to cultivate it by nurture.”

“Some alternatives to Evidence-Based Investing,” by Josh Brown, the Reformed Broker

Satire can be a great healer. Here, Brown lists some of the “better” tactics people use instead of evidence-based investing and concludes: “The harvestable errors of emotionally unaware people in the marketplace are a bumper crop for the patient, the sane and the disciplined.” Tough but true love about the wisdom of evidence-based investing.

Back in February, Rick Hill posted his reflections on why he’s not yet retired from his lengthy career as a financial professional. “Why am I still here?” he asked. “Because I am still in a great place!”

I, for one, am glad he is still here. We may tease him about his white hair, but from my first encounter with Rick in 2012 (which I still remember vividly – we talked about my alma mater Trinity University and San Antonio), he has shaped many of my own personal and professional values. Had Rick instead opted for spending every day on the golf course, I’d be poorer for it – this much I know.

I’m not the only young buck who has been inspired by Rick, the mentor. Check out this recent post: “This Lesson I Learned from a 75-Year-Old Man Might Earn You a Career.” It’s about Rick, written by one of our past summer interns, Dominic Vaiana. In sharing a few of his own takeaways from his internship with us, Dominic wrote that Rick “oozes wisdom and has a contagious energy that people half his age do not.”

I hope that 20-somethings will be saying the same about me when I’m 75 and still working at Hill Investment Group. That sounds more rewarding than any day on the links.

Who invented the index fund? Most investors would guess it was Vanguard founder John Bogle. Bogle did launch the first publicly available index fund in 1976. After being derided as “Bogle’s folly,” it went on to become today’s Vanguard 500 Index Fund, a name nearly synonymous with indexing.

So it may come as a surprise to learn that Bogle did not actually invent the index fund. That credit goes to three gentlemen who created the first institutional index funds in the early 1970s: Dimensional Fund Advisor board member John “Mac” McQuown, co-founder and Executive Chairman David Booth, and co-founder Rex Sinquefield.

In this brief video, Booth reflects on the evolution of indexing and evidence-based investing, which led to Dimensional’s own value-added approach. “The basic idea of indexing has been an overwhelming success,” says Booth, but “Dimensional built the firm on the idea that we could do better.”