“Isc remains deeply apologetic that prior versions of BIND did not properly catch the configuration error that you appear to have built your business on.”

“To be successful, you have to have your heart in your business, and your business in your heart. ”

“What did I tell you about Mister Safety Catch?' said Vimes weakly.
When Mister Safety Catch Is Not On, Mister Crossbow Is Not Your Friend,' recited Detritus, saluting.”

“Your father's an asshole. It's not a disease. You don't have to catch it.”

“Studies have shown that 90% of error in thinking is due to error in perception. If you can change your perception, you can change your emotion and this can lead to new ideas.”

“A book is a version of the world. If you do not like it, ignore it; or offer your own version in return.”

“I am not responsible for actions of the imaginary version of me you have inside your head.”

“after you have exhausted what there is in business, politics, conviviality, and so on - have found that none of these finally satisfy, or permanently wear - what remains? Nature remains.”

“Your ancestors invaded Macedonia and the rest of Greece and did us great harm, though we had done them no prior injury; … [and] I have been appointed leader of the Greeks …”

“Science, my lad, has been built upon many errors; but they are errors which it was good to fall into, for they led to the truth.”