The two work best together.

It is difficult to walk with one foot and sing with one hand.

A rising tide lifts all boats, but more firewood and less fire.

Everyone gathers firewood and the flames are high.

One brick cannot build a wall, and one wood cannot build a house.

A fence, three piles, a hero, three gangs.

One bamboo pole bends easily, but three hemp ropes are hard to break.

A single flower is not spring, and the garden is full of flowers.