Lewis Carroll

“Impenetrability! That’s what I say!”
“Would you tell me, please,” said Alice “what that means?”
“Now you talk like a reasonable child,” said Humpty Dumpty, looking very much pleased. “I meant by ‘impenetrability’ that we’ve had enough of that subject, and it would be just as well if you’d mention what you mean to do next, as I suppose you don’t mean to stop here all the rest of your life.”
“That’s a great deal to make one word mean,” Alice said in a thoughtful tone.
“When I make a word do a lot of work like that,” said Humpty Dumpty, “I always pay it extra.”

W S Anglin

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost. Rigour should be a signal to the historian that the maps have been made, and the real explorers have gone elsewhere.

Tom Stoppard

Words … are innocent, neutral, precise, standing for this, defining that, meaning the other, so if you look after them you can build bridges across incomprehension and chaos… They deserve respect. If you get the right ones in the right order, you can nudge the world a little or make a poem which children will speak for you when you’re dead.