War itself is the enemy of the human race.

An army without culture is a dull-witted army, and a dull-witted army cannot defeat the enemy.

Environmentalists are a socialist group of individuals that are the tool of the Democrat Party. I'm proud to say that they are my enemy. They are not Americans, never have been Americans, never will be Americans.

Applying different standards to al Qaeda does not abandon Geneva, but only recognizes that the U.S. faces a stateless enemy never contemplated by the Conventions.

Hatred is not contained in political thinking. Any hatred worked up against the public enemy is non-political, and always shows some weakness in the internal political situation.

The way politics divides the world is into friend and enemy.

The innocent and the beautiful have no enemy but time.

A military man can scarcely pride himself on having smitten a sleeping enemy; it is more a matter of shame, simply, for the one smitten.

A pitcher has to look at the hitter as his mortal enemy.

When I'm left on my own I'm my own worst enemy.

The best way to get along is never to forgive an enemy or forget a friend.

One of the most time-consuming things is to have an enemy.

But the threat posed by the radical Islamists represents an unusual conflict, unlike any experienced by our nation before: we face an enemy that is not a state.

I do not believe that the men who served in uniform in Vietnam have been given the credit they deserve. It was a difficult war against an unorthodox enemy.

I found out only recently that we were making an index of enemy code signs.