Example: 1. Galileo dared to question Aristotle’s theory that “the falling speed of an object is proportional to its weight. The heavier the object, the faster it falls” theory that has been regarded as true since 1700. , conducted an experiment on the Leaning Tower of Pisa (experiment is the only criterion for testing truth, and only by questioning can you get the truth)

2. Chen Jingrun raised the question about the "Tower Problem" in Hua Luogeng's "Theory of Stacked Prime Numbers" He raised doubts and put forward specific suggestions for improvement, which promoted the development of mathematics (questioning is the basis of perfection, and questioning is friendly)

3. During his research, German mathematician Zuwai Kalt questioned Euclidean A theorem in "Principles of Geometry": The sum of the interior angles of a triangle is equal to 180°. For more than two thousand years, people have always believed that this is a universal theorem, and scientists are convinced of the truth of this theorem. But Zuwaikarth's doubt promoted a sudden change in mathematics. The German mathematician Riemann was inspired by Zuwaikarth's ideas and made the non-Euclidean set emerge. Riemann pointed out that Euclidean geometry is not applicable in all spaces. For example, on the earth, the sum of the interior angles of a triangle is greater than 180°. (Don’t be afraid of authority when questioning)