The famous aphorisms about quantitative change and qualitative change include:

1. Disasters are often accumulated in the slightest, while wisdom and courage are often trapped in drowning

From "Ouyang Xiu" in the Song Dynasty "Preface to the Biography of Lingguan"

Therefore, when he was prosperous, the heroes of the world could not compete with him; when he was in decline, dozens of actors were trapped, died, and the country was destroyed, making the world laugh. Husband's misfortunes are often accumulated in the slightest, and wisdom and courage are often trapped in drowning. How can he be an actor!

Interpretation:

Disasters in life are often accumulated from trivial things. People’s wisdom and courage are often trapped by the things they love. Is it possible to only love actors? Can talents be like this?

2. When the soil accumulates, mountains become the wind and rain; when water accumulates, the abyss becomes abyss, dragons emerge;

From "Encouragement to Learning" by Xunzi of the pre-Qin Dynasty

When the soil accumulates, mountains become the wind and rain; when the water accumulates, the abyss becomes abyss, dragons emerge; when good deeds accumulate, the gods are satisfied and the holy mind is prepared.

Interpretation:

The accumulation of earth and rocks creates a high mountain, from which wind and rain rise; the accumulation of water flows becomes an abyss, from which dragons emerge; the accumulation of good deeds develops noble morals, and the spirit is improved , thus possessing the state of mind of a saint.

3. Rivers and seas do not choose small streams, so they can be deep;

From the "Book of Remonstrance and Chasing Guests" written by Li Si in the pre-Qin Dynasty

I heard that the land is vast If there are many grains, the country will be large and the people will be strong. If the army is strong, the soldiers will be brave. Therefore, Mount Tai does not allow soil, so it can grow into its great size; rivers and seas do not accept small streams, so it can reach its depth; the king does not reject the common people, so he can understand his virtue. This is why the five emperors and three kings are invincible because the land has no four directions, the people have no foreign countries, the four seasons are perfect, and ghosts and gods bring blessings.

Interpretation:

I have heard that the vastness of the fields means the abundance of food, the size of the country means the population, and the soldiers with good weapons are brave. Therefore, Mount Tai does not reject the soil, so it can achieve its height; the rivers, lakes and seas do not abandon the trickles, so it can achieve its depth; those who are determined to establish a royal industry do not despise the people, so they can demonstrate their virtue.