It is hard to let old beliefs go. They are familiar. We are comfortable
with them and have spent years building systems and developing
habits that depend on them. Like a man who has worn eyeglasses so
long that he forgets he has them on, we forget that the world looks to
us the way it does because we have become used to seeing it that way
through a particular set of lenses. Today, however, we need new
lenses. And we need to throw the old ones away.
-- Kenich Ohmae
