How does Thorin react to Reoc's advice? Use text evidence.

Thorin refuses to listen to Roac's advice. He remains unmoved in his decision.

"But they cannot reach the Mountain unmarked," said Roäc, "and I fear lest there be battle in the valley. I do not call this counsel good.

“Though they are a grim folk, they are not likely to overcome the host that besets you; and even if they did so, what will you gain? Winter and snow is hastening behind them. How shall you be fed without the friendship and goodwill of the lands about you? The treasure is likely to be your death, though the dragon is no more!”

But Thorin was not moved. "Winter and snow will bite both men and elves," he said, "and they may find their dwelling in the Waste grievous to bear. With my friends behind them and winter upon them, they will perhaps be in softer mood to parley with."