The world has an overabundance of independent wills, each orbiting with its own motive. No matter what pursues you, something else is pursuing it, just as you have your own pursuits.
When an adversary focuses too much energy on one target, it leaves itself vulnerable to other assaults. This is true in commerce, friendship, politics, and war.
If an enemy comes after you, stare him down. Keep him busy. While he aims all his focus toward you, his flanks remain open. No such assailant lacks enemies. Sooner or later, one of the bounty hunters looking for him will swoop in.