A traditional blessing for others wishing them good fortune, a long life, and many children; originally from the book "Zhuangzi"

The three requirements for improving one's writing according to Ouyang Xiu: read a lot, write a lot, and discuss a lot

The three essentials for scholars according to Yang Yi: read extensively, debate frequently, and write many works

Three methods used in traditional medicine to clear the body: inducing sweating, inducing vomiting, and purging