As for family mottos, the most famous one should be Zhuge Liang's "Book of Commandments".
"The Book of Commandments" - A gentleman's journey is to cultivate one's moral character through tranquility, and to cultivate one's virtue through frugality. Without indifference, there is no clear ambition; without tranquility, there is no way to reach far. Learning requires tranquility, and talent requires learning. Without learning, there is no way to expand talents, without ambition, there is no way to achieve learning. If you are lascivious, you will not be able to stimulate your energy. If you are impetuous, you will not be able to cultivate your nature. Years and times keep pace, and your mind goes with the day. Withered and withered, many will not take on the world, and they will sadly stay in the poor house, how will they be able to survive!
Secondly, there are some very brilliant sayings, such as:
1. Wang Yangming’s family motto
01. Learning should not come before determination. If the ambition is not established, it is like not planting its roots but only cultivating and irrigating it, and the hard work will lead to nothing.
02. Today’s people are suffering from illness, and most of them are just pride. All sins and evils all arise from pride. Arrogance means being self-righteous and unwilling to bow down to others.
2. Liu Bei’s family motto
Do not do evil because it is small, and do not do good because it is small.
3. Wang Huzhi’s family motto
The way of harmony is not to let a lapse in words or a lapse in etiquette create a grudge in your heart. If there is something wrong, why not face the blame and be careful not to hide it in your heart to accumulate resentment.
4. Zeng Guofan’s family motto
A person who is diligent and respectful will be wise even if he is a fool.
First calm down, then think about it, then do it with 50 or 60% confidence.
People's temperament is difficult to change due to their innate nature, but reading can change their temperament.
The above lists some very wonderful and philosophical family motto sentences. Chinese culture is broad and profound, and there are countless famous sayings about family mottos.