The Surprising Habit of Mentally Fit People

A scientist in entrepreneur’s clothing. Picture by OnInnovation via Flickr

When a reporter asked Bill Gates how would he define what he does for a living, he said simply, “I am a scientist.”

“I devote maybe ten percent [of my time] to business thinking. Business isn’t that complicated. I wouldn’t want to put it on my business card. I’m a scientist.” (Scientific…