Denshi Jisho — Online Japanese dictionary

Found 2 sentences.

たとえ困っていて、マックいつ楽天的 Even if he is in trouble, Mac is always optimistic.
楽観主義のぞきこんでますます楽天的、悲観論ますます悲観的になる The optimist looks into a mirror and becomes more optimistic, the pessimist more pessimistic.