The Mathemagician nodded knowingly and stroked his chin several times. “You’ll find,” he remarked gently, “that the only thing you can do easily is be wrong, and that’s hardly worth the effort.

Why not? That's a good reason for almost anything - a bit used perhaps, but still quite serviceable.

There are no wrong roads to anywhere.

The only thing you can do easily is be wrong, and that's hardly worth the effort.

One of the problems you have when you read with kids is that once they like something they want you to read it a hundred times.

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.

But just because you can never reach it, doesn’t mean that it’s not worth looking for.