The URL of the reference material below contains Ampere’s famous sayings and introductions. It contains the introductions of many famous people. Ampere is in Chapter 28. Two short stories of Ampere are added:

Ampere’s Thoughts He devoted himself to scientific issues, and there are many good stories in this regard. It is said that one time, Ampere was slowly walking towards the school where he taught, thinking about an electrical problem while walking. As he passed the Seine, he picked up a pebble and put it in his pocket. After a while, he took it out of his pocket and threw it into the river. When he arrived at school, he walked into the classroom and took out his pocket watch to check the time as usual, but what he took out was a pebble. It turned out that the pocket watch had been thrown into the Seine River by him. Another time: Ampere was walking on the street, walking. I came up with a formula for an electrical problem, but I was worried that I didn't have the right place to calculate it. Suddenly, he saw a 'blackboard' in front of him, so he took out the chalk he carried with him and started doing calculations on it. The "blackboard" turned out to be the back of the carriage. The carriage moved, and he followed it, writing as he walked. The carriage got faster and faster, so he started running, focusing on completing his derivation, until he Ampere stopped only after he couldn't catch up with the carriage. This abnormal action made the pedestrians on the street laugh.