Other than ... freediving is the most dangerous adventure sport in the world. - James Nestor

The whales welcomed them into their pods, started shooting them with echolocation to figure out what they were, and then started shooting them with... communication clicks. ...[T]his lasted for a series of days ...

These more philosophical freedivers get... the same look one sees in the eyes of Buddhist monks or emergency room patients who have died and then been resuscitated... who have made it over to the other side.

If you were to split a seashell in half and look at it, that's what's happening in your nose. ...[A]ll of this ...evolved for a reason... [A]ir that comes in through the nose is slowed down... filtered... humidified and it's conditioned, so by the time it gets to your lungs, your lungs can absorb that oxygen so much easier.