A Father told his Sons to live in peace: they paid no attention to him.
So he told them to bring the bath broom, and said:
"Break it!"
No matter how much they tried, they could not break it. Then the Father
unclosed the broom, and told them to break the rods singly. They broke
it.
The Father said:
"So it is with you: if you live in peace, no one will overcome you; but
if you quarrel, and are divided, any one will easily ruin you."