It pays to know the enemy - ...

It pays to know the enemy - not least because at some time you may have the opportunity to turn him into a friend.
It pays to know the enemy - not least because at some time you may have the opportunity to turn him into a friend.

More phrases

Being self-made is a state of mind, and once you put that mentality to work, your success will come.
 Dave East
A lot of people change for good. Some people just fall off. Just trying to progress in anything, no matter what you're doing, I feel like any progression you make... some people aren't gonna be around you that were around you.
 Dave East
There is only one boss. The customer. And he can fire everybody in the company from the chairman on down, simply by spending his money somewhere else.
 Sam Walton
Whenever you find yourself on the side of the majority, it is time to pause and reflect.
The gambling known as business looks with austere disfavor upon the business known as gambling.

Quotes from the same author

If you set out to be liked, you would be prepared to compromise on anything at any time, and you would achieve nothing.
To wear your heart on your sleeve isn't a very good plan; you should wear it inside, where it functions best.
Ladies and gentlemen, I stand before you tonight in my …  chiffon evening gown, my face softly made up, my fair hair gently waved, the Iron Lady of the Western world. Me? A Cold War warrior? … Well, yes — if that is how they wish to interpret my defense of values of freedoms fundamental to our way of life.
When others spoke of the fear of war, you spoke of the need for warriors and peace through strength. When others bewailed the failure of big government to provide for the collective good, you spoke of self-reliance, of personal responsibility, of individual pride and integrity. When others preached compromise - when others demanded compromise, you, Ronald Reagan, preached conviction.
One of the things being in politics has taught me is that men are not a reasoned or reasonable sex.