Quantitative and qualitative changes
“A journey of a thousand miles begins with a single step”
“A dike of a thousand miles collapses in an ant nest”
Everything must be reversed, or it will be peaceful.
Water drops penetrate stones, and leaves accumulate to form books
Beware of subtle changes
Internal and external factors
If you sow melons, you will reap melons, and if you sow beans, you will reap beans< /p>
Those who are close to the vermilion are red, and those who are close to the vermilion are black
Chisel the wall to steal the light