"No need to leave your door to know the whole world;
No need to peer through your windows to know the Way of Heaven.
The farther you go, the less you know.
Therefore the Sage knows without going,
Names without seeing,
And completes without doing a thing."
"Those who know don't talk about it; those who talk don't know it."
(Lao Tzu, Tao Te Ching. Trans. Robert G. Henricks)