"A picture is worth a thousand words."

Pictures convey emotions and messages better than written or spoken explanations.

"You can't judge a book by its cover."

Things sometimes look different than they really are.

"Actions speak louder than words."

Just saying that you'll do something doesn't mean much. Actually doing it is harder and more meaningful.

"Two heads are better than one."

When two people cooperate with each other, they come up with better ideas.