“The skilful traveller leaves no traces of his wheels or footsteps”

“A skilful (commander) strikes a decisive blow, and stops.”

“the skilful speaker says nothing that can be found fault with or blamed;”

“they all know the skill of the skilful, and in doing this they have (the idea of) what the want of skill is.”

“A good traveler leaves no tracks. Good speech lacks fault-finding.”

“The Tao is hidden, and has no name; but it is the Tao which is skilful at imparting (to all things what they need) and making them complete.”

“The thirty spokes unite in the one nave; but it is on the empty space (for the axle), that the use of the wheel depends.”