‘Let me think!’ said Aragorn. ‘And now may I make a right choice, and change the evil fate of this unhappy day!’ He stood silent for a moment. ‘I will follow the Orcs,’ he said at last. ‘I would have guided Frodo to Mordor and gone with him to the end; but if I seek him now in the wilderness, I must abandon the captives to torment and death. My heart speaks clearly at last: the fate of the Bearer is in my hands no longer. The Company has played its part. Yet we that remain cannot forsake our companions while we have strength left. Come! We will go now. Leave all that can be spared behind! We will press on by day and dark!’
‘With him lies the true Quest. Ours is but a small matter in the great deeds of this time. A vain pursuit from its beginning, maybe, which no choice of mine can mar or mend. Well, I have chosen. So let us use the time as best we may!’
Tolkien, J.R.R.. The Lord of the Rings: Book III: The Treason of Isengard.