Knowledge-When people realized its importance, in the Sui Dynasty, academies and private schools of all sizes mushroomed, covering the north and south of China in an instant. A large number of knowledgeable poor people have also become respected teachers. In the era of knowledge economy, there are also normal schools that specialize in training teachers. "Knowledge is wealth" seems to be no longer a sentence.

As early as the first year of the great cause of the Sui Dynasty (605), Emperor Wendi of the Sui Dynasty began to select talents through examinations in different subjects. During the period of Yang Di, imperial examinations were formally established to evaluate candidates' views on current affairs and select talents according to the examination results. Since then, China's imperial examination system was formally born. This system mainly monopolizes the system that officials are mostly selected from the children of powerful people in various places, so that those with low background but knowledge can realize their ideals.

I remember the famous German-American scientist Einstein once said a famous saying: W = X+Y+Z Y+Z. In this sentence, W stands for success, X stands for diligence, Y stands for the correct method, and Z stands for not wasting time and talking less. Although I can't deny this sentence, I think this famous saying needs to be revised slightly. Let's change it to W = K+X+Y+Z, where K refers to knowledge, and the word means "knowledge". Because I think if you don't have a little knowledge and master some necessary knowledge, then you will spend several times more time and work several times harder than others, and it is actually impossible to succeed in the most correct way.

Now is 2 1 century, and it is also the era of knowledge explosion. At this time, knowledge is particularly important. Yuan Longping, the "father of hybrid rice" in China, also solved the problem of food and clothing that has affected the world for centuries by knowledge.

When he was a child, he planted the ideal seeds: when he was a child, the Japanese invaded China and gradually invaded North China and Chinese mainland. The people of China who lost their country and their homes were attacked by Japanese invaders, and their bodies were everywhere. These tragic scenes left a deep national wound in Yuan Longping's childhood heart, and also produced a series of question marks in his mind: Why were the people of China bullied and slaughtered like this? Why are foreign robbers so overbearing in China? In the face of the harsh reality of national ruin, Yuan Longping made up his mind at an early age: to rely on his own knowledge to be a person who can make China rich and strong without being bullied by foreign robbers!

Finally, it is time for him to serve the motherland: in the past, the yield of rice per mu was very low, which could not meet our needs. 1960 When a rare natural and man-made disaster occurred, it was followed by a serious food famine. When Yuan Longping witnessed this scene, his heart was greatly shocked, so he vowed to cultivate new rice varieties with an yield of more than 2,000 kilograms per mu as soon as possible, thus greatly increasing the grain output.

From then on, he began his creative career. From June 1964 to July 1965, he and his wife Deng Ze discovered 7 male sterile plants. After eight years of hard work, they successfully prepared the seeds and organized the superiority appraisal in 1974, and Yuan Longping was in Hunan again. 49866.88868888666

1988, the area of hybrid rice in China was1940,000 mu, accounting for 39.6% of the rice area, while the total output accounted for 18.5%. 12.56 million mu, the total planting area of hybrid rice in China increased100 billion kilograms, with a total output value of 280 billion.

Nowadays, people without knowledge can't survive at all, and life is very difficult. Beggars can be seen everywhere in the street. They may be descendants of aristocrats who were famous for a while in ancient times, but later they gradually degenerated due to lack of knowledge.

"Never too old to learn", which originated from Solon, a famous politician in ancient Athens, has become a reality. Look! There are universities for the aged all over the country, with tens of thousands of elderly students. Now that every family is well-off, the living standards of ordinary residents have also improved, and every family has become rich. Those old people who couldn't go to school when they were young because their families were poor, in order to satisfy their desire to go to school as children and enrich their knowledge, they also entered the university for the elderly. They don't want to be ignorant and uneducated and laughed at by others.

Numerous celebrities have written and said famous sayings about knowledge, such as Bacon's "knowledge is power" and Einstein's "knowledge can not be obtained only from experience, but only from the comparison between rational inventions and observed facts."

With the progress of the times, knowledge, an indispensable "specialty" for everyone, will be paid more and more attention by the world. So, those students with poor academic performance, hurry up and work harder! Maybe it's not too late to try. And those poor people, let your children go to school, and don't let them repeat your mistakes! Because knowledge is wealth and knowledge is power!