Live with your friend as if he might become your enemy.
More English Proverbs:
Zeal without knowledge is a runaway horse.English
Much science, much sorrow.
English
Easter so longed for is gone in a day.
English
A man without religion is a horse without a bridle.
English
The money you refuse will never do you good.
English
The person who pursues revenge should dig two graves.
English