We shall not cease from exploration
And the end of all our exploring
Will be to arrive where we started
And know the place for the first time.
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Through the unknown, remembered gate
When the last of earth left to discover
Is that which was the beginning;
At the source of the longest river
The voice of the hidden waterfall
And the children in the apple-tree
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Not known, because not looked for
But heard, half-heard, in the stillness
Between two waves of the sea.
—T.S. Eliot, from “Little Gidding,” Four Quartets