We're all afraid, Frodo. But to let that fear drive us, to destroy what hope we have. Don't you see that is madness?
It is a strange fate that we should suffer so much fear and doubt over so small a thing.
One does not simply walk into Mordor. Its black gates are guarded by more than just orcs. There is evil there that does not sleep. And the Great Eye is ever-watchful. It is a barren wasteland riddled with fire and ash and dust. The very air you breathe is a poisonous fume. Not with ten-thousand men could you do this. It is folly.
It is a gift. A gift to the foes of Mordor. Why not use this ring? Give Gondor the weapon of the enemy. Let us use it against him.
Gondor has no king. Gondor needs no king.