“I have been Foolish and Deluded,” said Pooh, “and I am a Bear of No Brain at All.”
“You’re the Best Bear in All the World,” said Christopher Robin soothingly.

A. A. Milne (1882-1956) English poet and playwright [Alan Alexander Milne]

Winnie-the-Pooh, ch. 3 “Pooh and Piglet Go Hunting” (1926)
    (Source)