We are truth-speakers, we men of Gondor. We boast seldom, and then perform, or die in the attempt. "Not if I found it on the highway would I take it," I said. Even if I were such a man as to desire this thing, and even though I knew not clearly what this thing was when I spoke, still I should take those words as a vow, and be held by them.
The Lord of the Rings: The two towers (ed. 1967)