What people don't appreciate, ...

What people don't appreciate, when they picture Terminator-style automatons striding triumphantly across a mountain of human skulls, is how hard it is to keep your footing on something as unstable as a mountain of human skulls. Most humans probably couldn't manage it, and they've had a lifetime of practice at walking without falling over.
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 Randall Munroe

Quotes from the same author

Take wrong turns. Talk to strangers. Open unmarked doors. And if you see a group of people in a field, go find out what they are doing. Do things without always knowing how they'll turn out. You're curious and smart and bored, and all you see is the choice between working hard and slacking off. There are so many adventures that you miss because you're waiting to think of a plan. To find them, look for tiny interesting choices. And remember that you are always making up the future as you go.
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 Randall Munroe
I never trust anyone who's more excited about success than about doing the thing they want to be successful at.
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 Randall Munroe
A million people can call the mountains a fiction, yet it need not trouble you as you stand atop them.
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 Randall Munroe
The scholarly authorities on freezing to death seem to be, unsurprisingly, Canadians.
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 Randall Munroe