Guile

noun
Sly or cunning intelligence.
“He used all his guile and intellegence to free himself from the danger he was in.”

Five

Heaven and earth are ruthless;
They see the ten thousand things as dummies.
The wise are ruthless;
They see the people as dummies.

The space between heaven and earth is like a bellows.
The shape changes but not the form;
The more it moves, the more it yields.
More words count less.
Hold fast to the center.

Tao Te Ching by Lao Tsu
Translation by Ray Burgess