"If there is not enough water, the big boat cannot be pushed, if there is not enough wind, the big wings cannot be spread."

A boat floating in the middle of the ocean must rely on the power of the water. If an eagle wants to spread its wings high in the sky, it must also rely on the strength of the wind. Without enough water power, the boat cannot reach the dock, without enough wind power, the eagle cannot fly long distances.

People who want to do great things must live realistically and start from the most basic things.