“I discourage passive skepticism, which is the armchair variety where p...” — Tim Ferriss Quote

“I discourage passive skepticism, which is the armchair variety where people sit back and criticize without ever subjecting their theories or themselves to real field testing.”

“I'm very often described as a 'risk-taker' and 'extreme,' and there are a few examples of that, certainly in the physical experimentation.”

“If you look at the purported dangers of salt or fat, there is no consensus of support in scientific literature. So I would ask first: 'Is it possible to have an informed government that actually follows the science?' From what I've seen, it's not likely.”

“Nicknamed 'Mad-Dog Mattis' by his men, he was a command warrior in the old George Patton mode. He wasn't an armchair general by any definition of that much-maligned term. If a Marine re-upped at a location where he was present, he would personally go to that Marine and thank him or her for rejoining.”

“I cannot write about the past unless I go where history happened. Some make very good armchair historians, I'm not one of them. If you're going to inhabit someone else's world, the very least you can do is to spend a little time in it.”