misfortunes can happen to anyone; what happens to one today may happen to another tomorrow
Proverb reminding that others' misfortunes are not just their problem; the same could befall you. Often used to encourage empathy or caution.
Don't laugh at others' mistakes, because what happens to them today could happen to you tomorrow.
A traditional Japanese proverb. The exact origin is uncertain, but it reflects a common theme in folk wisdom.