A drop in the ocean is like a drop in the ocean

A leopard can be seen in a tube and a leaf is blinding

The tree that hugs each other is born at the end of the mill; the nine-story platform starts from the base soil; the journey of a thousand miles begins with a single step . ——Lao Dan Quoted from "Laozi·Tao Te Ching"

It is easy for a young man to learn but hard to become an old man, and an inch of time should not be taken lightly. ——Zhu Xi

As the saying goes

A drop of kindness should be repaid by a spring

An earthworm shakes a tree - one does not know one's ability

Anti-aircraft guns Fighting Mosquitoes---Overkill