Robby

“Would it be possible for me to see something from up there?" asked Milo politely.

"You could," said Alec, "but only if you try very hard to look at things as an adult does."

Milo tried as hard as he could, and, as he did, his feet floated slowly off the ground until he was standing in the air next to Alex Bings. He looked around very quickly and, an instant later, crashed back down to the earth again.

"Interesting, wasn't it?" asked Alex.

"Yes, it was," agreed Milo, rubbing his head and dusting himself off, "but I think I'll continue to see things as a child. It's not so far to fall.”
― Norton Juster, The Phantom Tollbooth

“I refuse to answer that question on the grounds that I don't know the answer”
― Douglas Adams

“A learning experience is one of those things that says, 'You know that thing you just did? Don't do that.”
― Douglas Adams, The Salmon of Doubt: Hitchhiking the Galaxy One Last Time

“A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.”
― Douglas Adams, Mostly Harmless