The so-called "bottom line" is something that should not be touched and can be used to warn people.
"Disputes between parents over educational philosophies for their children can be understood; but if it results in violence, or even divorce and tearing apart a family, the price is too high."
This is family ethics.
"Sacrificing sleep to study, sleeping only five or six hours a day is a necessary sacrifice for the future; but if you ignore your actual physical condition, leading to fainting, shock, or even sudden death, then you have completely sacrificed the future."
This is personal life safety.
"And when students compete for grades, there's no so-called camaraderie, which is still okay; but if they maliciously cheat to interfere with other students' exam performance for the sake of grades, more seriously—"
