Tao Te Ching: Chapter 7

Heaven and earth keep on going because they don't try to go anywhere.
They never run out because they don't take anything for themselves.
To follow their example, stay ahead by putting others in front.
Stay in the center by putting ourselves aside.
Acting with no hope of gain, how can we lose?

Must we do a thing just because it is there to be done? Or can we spend our actions more wisely?