Tao Te Ching 36

When one is about to take an inspiration, he is sure to make a previous expiration; when he is going to weaken another, he will first strengthen him; when he is going to overthrow another, he will first have raised him up; when he is going to despoil another, he will first have made gifts to him: this is called 'Hiding the light of his procedure.'

The soft overcomes the hard; and the weak the strong.

Fishes should not be taken from the deep; instruments for the profit of a state should not be shown to the people.