“Many people think all I do is some random engineering work in between ...” — William Stone Quote

“Many people think all I do is some random engineering work in between caving expeditions. It's been far more deliberate than that.”

“If you don't come home with data, you've done nothing.”

“Cave divers, of course, deal with an elevated level of risk, and the most that I can say here is that we tend to conduct our work at the bottom of a deep cave on an extremely conservative basis with heavy levels of backup equipment and a policy to abort if any single person doesn't like the situation underwater at any time during the mission.”

“Iran has pursued a deliberate policy of kidnapping and unjustly detaining innocent Americans since the very beginning of its revolutionary regime.”

“Deliberate violence is more to be quenched than a fire.”

“I've just been trying to improve - it's a not a deliberate thing to focus on one thing.”