Cite an example to explain the principle of "Water Drops Wear Through Stone"

The principle of "Water Drops Pierce Stone" is: all changes in things begin with quantitative changes. Without preparation for quantitative changes, there will be no qualitative changes. Quantitative change is the prerequisite and necessary preparation for qualitative change. Therefore, we must pay attention to the accumulation of weight.

For example, "Three feet of ice does not freeze in one day"; "Go to the seventy-two streams to form a waterfall, and the combined flow will fly down into the Yuyuan." Another example: From the periodic table of elements, we can clearly see that the chemical properties of elements change periodically as the charge number of the atomic nucleus increases. It is this change in quantity that causes the properties of more than one hundred elements. difference. The philosophy embodied in all these examples is the same as that of "Water Drops Pierce Stone".