The Biden administration’s mask mandate for public transportation has been struck down, and people are now free to do whatever they want on planes and trains. But what should we choose to do?

A Columbia professor comes clean about his casual drug use—and thinks the rest of us should think more about harm reduction than eradication when it comes to addictive substances.

The elderly “will be the ones to sound the alarm, the alert: ‘Be aware, this is corruption, it will bring you nothing,’” Pope Francis said during his general audience on March 16.

Pope Francis has called for Catholics to support principles of “total sustainability.” A meat industry that warms the planet, ravages forests and fouls our water is incompatible with those principles.

What a 1965 novel by Graham Greene taught a young Dr. Paul Farmer during his first years working in Haiti.

As the world begins to emerge from the most recent surge of the Covid-19 pandemic, how do we return to normal? And what should normal mean?