"Kind words are warmer than cloth, and hurtful words are deeper than spears and halberds" is a proverb, which means that kind words are helpful to others, just like warm clothes, while hurtful words, like spears and halberds, will hurt people's hearts. This proverb tells us that words are a powerful force, which can help others or hurt others. Therefore, we should be careful what we say and do, and warm others with kind words, instead of hurting others with hurtful words. The meaning of this sentence comes from Xunzi's honor and disgrace.

Xunzi wrote Xunzi, a book with 50 articles, which is one of the most famous philosophical works in the history of ancient philosophy in China. Xunzi's thoughts mainly involve morality, politics and economy. He believes that morality is the foundation of society, politics is to protect people's interests and economy is to meet people's needs. Xunzi's thoughts had a profound influence on China's ancient philosophy, and he was called the "first master" of China's ancient philosophy.