Happiness: Summing Up a Big Idea in a Short Sentence.

Although it may seem reductive, I think people grasp and remember great truths better when they're snappily summed up. I love epigrams, aperçus, apothegms, and aphorisms of all sorts, and I try to to sum up my happiness conclusions in catchy, yet of course profound, axioms.

My greatest success so far: The days are long, but the years are short. That short sentence says it all. (If you haven't seen my one-minute video, check it out.)

I was thinking about my Second Splendid Truth. Just getting...