Examples of "seeking truth from facts"

1, Xu Beihong admitted to drawing a duck by mistake.

Xu Beihong studied in France in his early years, and his character modeling pays attention to realistic expression, especially good at sketching. For Chinese painting, he advocates reform: "Western painting can be absorbed and integrated." The combination of Chinese and western techniques has formed his unprecedented realistic painting style.

I heard an old man say that once, Xu Beihong was commenting on this painting at an art exhibition, and an old man from the countryside suddenly came up to him and said, "Sir, the duck you drew is not right. You drew a duck. How can a duck's tail be so long? "

When you look at it, it turns out to be Xu's new work "Writing Dongpo Chunjiang Plumbing Poetry", in which the tail feathers of ducks are curled like rings. The villagers said that drakes have bright feathers and curly tails; The female feather of the duck has a short brown tail, which is wrongly drawn.

Xu admitted his negligence in sketching and was deeply grateful to retire.

Su Dongpo apologized to Wang Anshi.

Su Dongpo, a great writer in Song Dynasty, was a bachelor of imperial academy, and people called him Su Bachelor. Su Dongpo is brilliant, his articles are well written and his poems are well written. But no matter how knowledgeable a person is, it is impossible to know what's going on in the world, so sometimes he has to make some mistakes.

One day, Su Dongpo went to visit Wang Anshi, the prime minister of the dynasty. The servant of the Prime Minister led him into Wang Anshi's study, saying that the Prime Minister was on a business trip and would be back soon. He asked Sue to have tea later. After waiting for a while, the host didn't come back. Su Dongpo strolled to the table and saw a poem chanting chrysanthemums on the table. The poem was not finished, only two sentences were written: "Last night, the west wind crossed the garden, blowing yellow flowers and gold everywhere."

Su Dongpo couldn't help secretly laughing when he saw it: "West Wind" is obviously autumn wind, and "Yellow Flower" is chrysanthemum, which never dares to face the wind in Ao Shuang, and is the most cold-resistant and freezing-resistant. Isn't it a big mistake to say that the west wind "blows yellow flowers all over the ground" Thinking of this, Su Dongpo's poems are full of enthusiasm. Unable to hold back, he dipped his pen in ink and wrote two sentences in the letter: "Autumn flowers are not better than spring flowers, and he said that he should sing with poets carefully."

Su Dongpo put down his brush and stayed for a while. Seeing that his master had not come back, he got up and left. Besides, when Wang Anshi came home, he met Su Dongpo's words in his study. He just shook his head and didn't care about Su Dongpo.

Later, Su Dongpo went to Huangzhou to be the ambassador of Ying Yong.

Su Dongpo lived in Huangzhou for nearly a year. On the Double Ninth Festival, there are strong winds for several days. One day, after the wind stopped, Su Dongpo invited some friends to enjoy chrysanthemums in the suburbs. I saw that the chrysanthemum garden was full of colorful flowers, golden and bleak in the west wind.

At this time, Su Dongpo suddenly remembered the continuation of Wang Anshi's poems, and he was dumbfounded and speechless for a long time. He suddenly regretted that he had made a joke in the past and quickly wrote to Wang Anshi to apologize.

3. Einstein's mistake

19 17, that is, the year after he founded the general theory of relativity, Einstein and Dutch physicist de sitter independently studied this work to explain the stability of the universe. They found that the cosmic solution of the gravitational field equation is dynamic rather than static. In other words, the universe either expands or contracts.

Because of the prejudice of physical intuition and the error of mathematical operation, Einstein never gave up the concept of static universe. In order to get the static solution of the universe model, he did not hesitate to introduce a "universe term" into the equation. This conclusion accords with the cosmological principle at that time and the known observation facts.

However, in 1922, American scholar Friedman found another dynamic solution of this equation; In 1927, Belgian scholar Lemaistre got the same solution independently. From a mathematical point of view, it is proved that the universe is not static, but expands or contracts uniformly. However, Einstein still refused to accept this result and insisted on his view of static universe model.

Two years later, according to the observation of distant nebulae, American astronomer Hubble found that the spectral lines emitted by distant stars had a red shift, and the spectral lines of stars farther away from the earth had a greater red shift. This shows that the star is moving away from the earth.

Hubble's discovery supported Friedman's dynamic universe model and changed Einstein's view of the universe. Einstein called the mistake of sticking to the static universe model "the biggest mistake in his life" and withdrew his criticism of Friedman and others.

Later, on his 70th birthday, he said to his good friend Sollovan, "I don't think any concept in my works is firmly tenable, and I'm not sure that the road I'm taking is generally correct." This sentence largely contains his mistakes in 19 17.

A world-famous great scientist can bravely admit his mistakes and humbly review his achievements that have been recognized and praised by the world, which shows that Einstein is realistic and respects science. This is why Einstein was able to achieve great success.

4. White cats and black cats

There is a picture of two cats hanging in Deng Xiaoping's home. A cat in the picture is white and soft; The other cat is black and bright. Above the pictures of the two cats are a few lines of powerful inscriptions: "No matter whether it is a white cat or a black cat, it is a good cat that can catch mice." This painting was specially painted by Chen Liantao, an old painter known as "Elvis Presley in the South of the Yangtze River", for Deng Xiaoping.

"No matter whether it is a white cat or a black cat, it is a good cat that can catch mice." This is a famous saying of Deng Xiaoping, which reflects an important viewpoint of Deng Xiaoping's Anbang governance. Cat's theory is simple, but it contains profound philosophy. Form must reflect information, and means must obey the purpose. This important epistemology and methodology runs through all aspects of Deng Xiaoping's strategy of governing the country and socialist construction.

On the question of "what is socialism", Deng Xiaoping pointed out that poverty is not socialism. To build socialism, we must first get rid of poverty and backwardness and vigorously develop productive forces. On the road of socialist development, Deng Xiaoping emphasized that every country should go its own way according to its own characteristics and national conditions.

We can neither copy the practices of western countries nor those of other socialist countries. Deng Xiaoping said that it is our basic conclusion to combine the universal truth of Marxism with the concrete reality of our country and take our own road to build socialism with China characteristics.

5. Liu Lu "copied books"

During the period of Emperor Jing of Han Dynasty, Liu De, the king of Hejian, liked to study Confucian classics. When he was studying Confucianism, he always tested the truth according to examples. After he got a good book from the people, he personally copied it and gave it to the original owner, as well as gold and silver. So many people envy giving him books. In the long run, he has more books than the imperial court.