A Rails question for Bill Clinton

This sounds more like a rails question for Gertrude Stein, to be

There is no :there there.

:true and :false have no special meaning in Ruby. They are symbols. If
you are using them interchangeably with true and false, you're only
creating bugs.

Really, symbols are useful wherever you might be using a string over
and over again as a token to represent some state or other. They are
more efficient than strings in this context.

google 'ruby symbols versus strings' and you'll get some good results.