with a frog who lives in a well;
he is bounded by the space he inhabits.
You can't talk about ice
with an insect who was born in June;
he is bounded by a single season.
You can't talk about Tao
with a person who thinks he knows something;
he is bounded by his own beliefs
The Tao is vast and fathomless.
You can understand only by stepping
beyond the limits of yourself.
From the Chaung Tzu. 17
via Stephen Mitchell, The Second Book of the Tao.