Espionage Quote by Sun Tzu

This is the wonderful thing about espionage, nothing exists any more.

— William Stephenson

Both cyber and old-fashioned human-intelligence industrial espionage has occurred for decades without any significant retribution by the United States.

— Robert C. O'Brien

You couldn't trust anyone or anything that belonged to the world of espionage.

— Anthony Horowitz

Once you've lived the inside-out world of espionage, you never shed it. It's a mentality, a double standard of existence.

— John le Carre

All warfare is based on deception. There is no place where espionage is not used. Offer the enemy bait to lure him.

— Sun Tzu

The human spy, in terms of the American espionage effort, had never been terribly pertinent.

— Aldrich Ames

There is no real security in what is no longer meaningful.

— Alan Cohen

The National Surveillance State doesn't want anyone to be able to communicate without the authorities being able to monitor that communication.

— Barry Eisler

The U.S. Military is no place for social experiments.

— Luther Strange

I found that our Soviet espionage efforts had virtually never, or had very seldom, produced any worthwhile political or economic intelligence on the Soviet…

— Aldrich Ames

“Espionage is not supposed to be sporting, otherwise it would not be clandestine.”

— Khalid Muhammad

Our Soviet espionage efforts had virtually never, or had very seldom, produced any worthwhile political or economic intelligence on the Soviet Union.

— Aldrich Ames