Obviously, there will be some life events that take great employees away from a company, which cannot be stopped.

FORBES: Great Employees Are Not Replaceable

The bad news is that it cannot be stopped at this point.

FORBES: A Fool's Gold Rush In Currencies

Everyone needs to accept that piracy cannot be stopped and loss prevention is not a concept that can be applied to the digital world.

FORBES: DRM Hurts Companies More than Piracy, Developer Argues

Some students, professors and campus police officers argue a person determined to kill cannot be stopped, but say they are doing everything they can to put a proper security system in place.

CNN: readers: Are we safe on campus?

As long as all of you understand the immense and incredible power that you possess when you work together, when you join voices, when you extend yourselves not just on behalf of your own ambitions but on behalf of a larger cause, you cannot be stopped.

WHITEHOUSE: Remarks by the President at Staff Inaugural Ball

We cannot be stopped.

WHITEHOUSE: The White House

What cannot be acceptable and must be stopped is JIMMY SAVILE's paedophilia.

BBC: The missed chances to get Jimmy Savile