Man-made

1) Food
2) Water
3) Shelter
4) Medical Supplies
5) Energy
6) Communications

"Anything that can go wrong, will go wrong"

"Ninety percent of everything is trash. The other 10% is worth dying for."

"The simplest explanation is most likely the correct one"

"Never attribute to malice that which can be adequately explained by stupidity."

"Just because you're paranoid doesn't mean they aren't after you"

"20% of your effort will produce 80% of the result."

"An accident is not just one thing going wrong, but a whole chain of things going wrong."

"No one uses more then 5% of MS Word, it's just that everyone uses a different 5%."

"Loose Lips, Sink Ships"

"Hope, Faith and Charity"

"Be yourself"

"You can lead a horse to water, but you can't make him drink."

"Learn from other peoples mistakes, you won't live long enough to make them all yourself."