Rewrite this story using simpler, more modern language.

A father had a family of sons who were perpetually quarreling among themselves.

When he failed to heal their disputes by his exhortations, he determined to give them a practical illustration of the evils of disunion; 
and for this purpose he one day told them to bring him a bundle of sticks.

When they had done so, he placed the bundle into the hands of each of them in succession, and ordered them to break it in pieces. They tried with all their strength, and were not able to do it. 

He next opened the bundle, took the sticks separately, one by one, and again put them into his sons' hands, upon which they broke them easily. 

He then addressed them in these words: "My sons, if you are of one mind, and unite to assist each other, you will be as this bundle, uninjured by all the attempts of your enemies; but if you are divided among yourselves, you will be broken as easily as these sticks." 
A man had several sons who were always fighting with one another. When his pleas for them to stop didn't work, he decided to show them why their conflict was so problematic. So one day he told them to bring him a bundle of sticks.

After they did, he placed the bundle into each of their hands, one after another, and ordered them to break the bundle into pieces. They tried very hard but couldn't do it.

He then opened the bundle and placed individual sticks into each of his son's hands. His sons broke them easily.

Then he told his sons, "If you are like-minded, unite, and assist each other, you will be like this bundle, strong against your enemies. But if you are divided, you will each break as easily as these sticks."