IN OCTOBER, Lucinda and I spent a week in Venice. We rented an apartment with no wi-fi, so every day for 30 minutes we’d settle into a café with Internet access. While my wife dealt with work issues, I’d catch up on the news, check email, see how the markets were performing and look at the Amazon rankings for my various books.
There was nothing extraordinary about this—except that I was doing it just once a day.

PAST PERFORMANCE is no guarantee of future results—and that’s especially true once an investment goes from backwater to broad acceptance. Take real-estate investment trusts. Over the past 15 years, they have been embraced by investors, leading to great returns as folks loaded up on REITs. But that widespread acceptance was a onetime event—and returns from here will likely be more modest, especially with equity REITs yielding just 3.4%, versus almost 9% at year-end 1999.

MY STANDARD ADVICE has always been to keep roughly two-thirds of a stock portfolio in U.S. shares and a third in foreign stocks. As I see it, we invest now so we can spend later. Come retirement, most of us will spend our savings on U.S. goods and services, so it makes sense to have the bulk of our assets in dollar-denominated investments.
But I’m having second thoughts. U.S. and foreign stocks each account for roughly half of global stock-market capitalization,

GOLD HAS NEVER been an investment I’ve been comfortable with. The problem: It has no intrinsic value. Unlike a bond, it doesn’t pay interest and, unlike a stock, it doesn’t have earnings or pay a dividend. Instead, gold has value mostly because the supply is limited and because owners have faith that others will also view it as valuable.
And yet, today, I consider myself a fan—though I favor owning gold-mining stocks, rather than the metal itself.

YESTERDAY MORNING, I spoke at career day at the Philadelphia school where my daughter teaches. My two fellow panelists were a city planner and a fundraiser for a local ballet company. What did we tell the 11th grade kids? Interestingly, all three of us focused on the same four themes:

You’re unlikely to have a single career. Instead, you’ll switch direction as you discover what you’re good at, the world changes around you and you grow weary of your current job.