"To surely achieve something" is too mystical, and waiting until he's seventy or eighty to "become great late in life" is useless.,However, after years of hard work, Wei Tu learned the skills of raising horses from Lao Liu, a veteran stablehand. He successfully rose from tenant farmer to become the new stablehand at Li's house.,While both serfs and grooms serve their masters, the former face a much harder life. They are burdened with heavy labor and receive no wages, being exploited to death by their owners.。