If two people are connected, their sharpness can cut metal. Zhouyi
He who works with everyone's strength will accomplish nothing. pipe/tube
Like evil, like good and stay, caring for each other, like desire, like profit and die. -Historical records
Each of you is a piece of wood. No matter how powerful a person is, if he cooperates with everyone, he will always play a greater role than one person alone. Samuel Butler
Edison: Cooperation is the mother of success.
Zhuge Hei: Two heads are better than one.
Language forest: a tree cannot be a forest.