2. Meaning: There is no absolute opposition in the world. What seems contradictory is actually interdependent. Beauty and ugliness are the same, so are good and evil. Therefore, we must conform to the laws of nature and not violate heaven in order to succeed.

3. Source: Laozi's Tao Te Ching.

4. Original text: Everyone knows that beauty is beauty and evil; As we all know, goodness is good, but it is not good. Therefore, whether there is a phase or not, it is difficult to bring out the best in each other, the length is consistent, the height is oblique, and the sound is in harmony. It is based on the sage's inaction and teaching. Everything is done without hesitation, born without it, done without relying on it, alive and successful. The husband only lives in the house, so he can't go.

5. Translation:

If everyone knows that beautiful things are beautiful, they will be ugly; Everyone knows that good things are good, which shows evil. Therefore, existence and nothingness are opposites, and difficulty and ease are opposites. Long and short are embodied through opposition, high and low are embodied through opposition, sound and harmony are embodied through opposition, and before and after are embodied through opposition.

Therefore, saints act according to the laws of nature and educate people according to the laws of nature. Let all things do not interfere on their own, all things do not come into being for themselves, and do something without arrogance; Do great things without taking credit. Just because I don't take credit for myself, I won't lose my grades

Extended data:

The practical significance of Tao Te Ching;

One theme of Tao Te Ching is that "Tao" put forward by Laozi is the core of his philosophical thought. The meaning of Tao is profound and profound, which requires us to understand it from all aspects. In fact, the operation of everything in the universe has certain objective laws, and this objective law requires us to have a relevant and comprehensive understanding and understanding.

But we live in this world, we should constantly sum up, constantly think, find out the laws, gradually understand the world, understand the world, and master the operating rules of the future world. Therefore, to treat Laozi's thoughts, we should critically inherit, take its essence and discard its dross. Many of his contents are also very enlightening and instructive today.

For example, the principles of "retiring after success" and "living up to your mission" are the essence of the Chinese nation and the basis for settling down and treating others. In today's materialistic world, Laozi's philosophy of life, such as "quietism" and "selfishness without desire", is a panacea to save people's hearts. Let us treat gains and losses correctly and purify people's hearts.