As Charlie tells independent producers Dan Collison and Elizabeth Meister, learning the story of just how his father became blind helped him grow closer to the old man, who spent much of his life absorbed in philosophical writings.

NPR: Charlie Rizzo: Walking with My Father

Valve believes the PC games market is healthy and will continue to grow, but Newell recognizes at least a couple of blind spots for the company: mobile and motion-gaming.

FORBES: Valve And Steam Worth Billions

The ways in which stress impacts our quality of life and our health are far too important for us to continue turning a blind eye, as the number and intensity of the things that cause it will only continue to grow.

FORBES: This Holiday Season, Stress is the New Fat