One may know the world without going out of doors.
One may see the Way of Heaven without looking through the windows.
The further one goes, the less one knows.
Therefore the sage knows without going about,
Understands without seeing,
And accomplishes without any action.
-- Lao-Tzu (fl. B.C. 600)
He spoke with the wisdom that can only come from experience like a guy
who went blind because he looked at a solar eclipse without one of those
boxes with a pinhole in it and now goes around the country speaking at
high schools about the dangers of looking at a solar eclipse without one
of those boxes with a pinhole in it....