Source: Chapter 36 of Tao Jing.
Translation:
If you want to restrain yourself, you must first expand; To weaken it, we must first strengthen it; If you want to abolish it, you must praise it first; If you want to catch it, you must give it first. This is the so-called subtle and obvious, but the weakness overcomes the advantage. Fish can't survive without Chi Yuan, and the country's criminal law and politics can't be shown off to people, nor can it be easily used to scare people.
Author: Laozi
Introduction to Laozi:
Lao Tzu, surnamed Li Minger, the word Bo Yang. I have two possible identities, one is Lao Dan and the other is Lao Laizi. Lao Dan, a thinker in China during the Spring and Autumn Period, was the librarian. He is the author of the Taoist classic Tao Te Ching, and his theory was later developed by Zhuang Zhou. Taoist descendants regard Laozi as a master. Compared with Confucian Confucius, Confucius once asked Laozi about etiquette in history. By the time of Wuzong in the Tang Dynasty, Laozi was designated as the 18th incarnation of Taishang Laojun, one of the Sanqing gods, but in the early Taoism, Laozi was regarded as a subordinate of Taiqing. Laozi and Zhuangzi of later generations are also called Zhuang zi.