Mother Nature doesn't care if you're having fun. - Larry Niven

The test of time has at least the virtue of being unambiguous.

Those who will give up essential liberty to secure a little temporary safety deserve neither liberty nor safety. - Benjamin Franklin

“For letting us examine their silly records they want to charge us a flat million marks!”
“Pay it.”
“It’s robbery.”
“A Belter says that? Why don’t you have records on Mars?”
“We were never interested. What for?”
“What about abstract knowledge?”
“Another word for useless.”
“Then what makes you want useless knowledge enough to pay a million marks for it?”
Slowly Nick matched his grin. “It’s still robbery. How in Finagle’s name did Earth know they’d need to know about Mars?”
“That’s the secret of abstract knowledge. You get in the habit of finding out everything you can about everything. Most of it gets used sooner or later.”