Famous quotes, they don’t seem to be powerful enough. They are far less inspiring than the common sayings spread among the people, but I’ll find a few for you:

Not to be close to each other, not to be a human being; If you don't obey your parents, you can't be your son. ——Mencius

He who has no father and no king is just a beast. ——Mencius

Unfilial people are the most hateful people in the world. ——Lu Xun

Losing a loving mother is like a flower in a vase. Although it still has color and fragrance, it has lost its roots. ——Lao She