Who said "Adventure is everywhere if you look for it."?

This quote is attributed to Snoopy.

Adventure is everywhere if you look for it. - Snoopy

"Adventure is everywhere if you look for it."

Snoopy Adventure

"I think I'm dying. Send for a doctor immediately!"

"Rats! Another day, another disappointment."

"Sometimes I lie awake at night and ask, 'Is life a multiple choice test or an essay?' Then a dog barks and I realize it doesn't matter."

"I love mankind. It's people I can't stand."

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."