What specific examples did the author use to illustrate his point of view?

More than 60 years ago, a biologist named Michelson found that there was an earthworm on the east coast of the United States and the west coast of Europe at the same latitude, but there was no such earthworm on the west coast of the United States. Why? This problem attracted the attention of Wei Gena, a German geologist who was studying the origin of continents and coasts at that time. Wei Gena thought that this little earthworm had limited mobility and could not cross the Atlantic Ocean. Its distribution just shows that the European continent and the American continent are connected and then split into two continents. He took the geographical distribution of earthworms as an example and wrote it into his masterpiece The Origin of the Mainland and the Ocean.

Hard work will pay off.

Hard work pays off, which is a famous saying. It tells people that nothing is impossible if you work hard.

For example, Sun Jing, a native of the Jin Dynasty, tied a rope to his hair and tied the other end to the beam in order not to doze off during study every night. Whenever his head drooped, the rope would wake him up and continue reading after waking up, so he became a celebrity who used hanging beams to prevent himself from falling asleep. And Su Qin, a thorn in his side, can't be an official in Qin, and is always looked down upon by others. He studies hard and forgets to eat and sleep. Whenever it's quiet at night, Su Qin is already dizzy and always wants to sleep. He immediately stabbed his thigh with an awl, felt the pain and woke up. This is Su Qin, a celebrity who woke himself up by stabbing stocks.

Another example is Kuang Heng in the Western Han Dynasty. His family is poor, but he likes reading very much. But there was no oil to light a lamp in his house at night, and his neighbor's room was lit, so Kuang Heng dug a hole in the wall and read by the light coming out of the hole. This is the story of "digging a wall to borrow light".

There is also the modern Xu Beihong, whose paintings are well-known at home and abroad. When he was young, he was determined to learn painting, and with his hard work, he won honor for our country and prevented foreigners from looking down on us in China.

From these celebrity stories, we must understand a truth: only by sticking to the end can we make a difference.

I had the same experience when I was growing up. In the second grade of primary school, I learned Chinese painting and electronic organ. At that time, the teacher was very strict and I was very diligent. I insist on painting and practicing piano every night. A year later, I passed the Chinese painting level 2 exam and the electronic piano level 4 exam. Unfortunately, the art teacher stopped teaching, and I gradually relaxed the practice of drawing, from drawing one every day to drawing one every week. In this way, it was gradually abandoned. I began to finish the study of electronic organ. Whether it's windy or rainy, hot or cold, I insist on going to school by bus for more than two hours every Sunday. It's always dark when I get home. After returning home, I also insisted on practicing for nearly an hour every night. Coupled with the urging of parents, we finally achieved certain results.

From my study of painting and electronic organ, I deeply realized the profound meaning of the sentence "Many things grind". We should not be half-hearted, half-hearted, but should stick to it. Only in this way can we make a difference and make due contributions to the people and society.

Lincoln, the first 16 president of the United States, is a world-famous orator. His success lies in his hard practice of speaking eloquence from his youth, watching and listening more. When he was young, he worked as a farmer, lumberjack, shop assistant, post office clerk and land surveyor. In order to become a lawyer, he often walks 30 miles to a court to listen to lawyers' defense and see how they argue. How to make gestures? He imitated politicians and speakers while listening to their impassioned speeches. He listened to the evangelists who traveled around the world waving their arms and shaking their voices in the sky. After returning, he also learned from them and practiced his speech repeatedly in the Woods and cornfields. The success of the speech made Lincoln finally become an eloquent lawyer and finally entered politics.