Sparing the rod意思
"Sparing the rod" is an English idiom that comes from the Bible, specifically from the Book of Proverbs in the Old Testament. The full phrase is "spare the rod, spoil the child," which means that if you do not discipline your child, you are ruining them or not preparing them for the future. In other words, it suggests that children need to be disciplined in order to learn right from wrong and to become responsible adults.
However, the use of "spare the rod" has become somewhat controversial in modern times, as there is debate about the effectiveness of corporal punishment (physical discipline) and whether it is an appropriate way to discipline children. Many people now believe that there are more humane and effective ways to teach children about responsibility and consequences without using physical force.