The preface to Yuanjiawan's Family Instructions says:
Don't fight for heaven, don't do anything to kill;
There is no distinction between high and low, just watch each other;
Respect the ancestors and pass it on to future generations.
Yu Fei asked his grandfather, why are there so few people in our Yuan family?
Grandpa said that when the young eagle spreads its wings and soars, it will know that anyone with the surname Yuan belongs to our family.