Who said "Do the right thing even when nobody's watching to see it."?

This quote is attributed to Mickey Mouse.

Do the right thing even when nobody's watching to see it. - Mickey Mouse

"Do the right thing even when nobody's watching to see it."

Mickey Mouse Justice

"Hot dog!"

"Oh boy!"

"Gosh!"

"That's swell!"

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."