Never have a battle of wits with an unarmed person.

Reality leaves a lot to the imagination.

To invent, you need a good imagination and a pile of junk.

A person will sometimes devote all his life to the development of one part of his body - the wishbone.

When I see birches bend to left and right... I like to think some boy's been swinging them.

The limit of man's knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.