Do not be too eager to deal out death and judgment. Even the very wise cannot see all ends.

Gandalf (Ian Mckellen)

9 seconds sound clip from the The Lord of the Rings: The Fellowship of the Ring movie soundboard.

You can hear this line at 02:08:27 in the Blu-ray version of the movie.

Quote context

[...]

- He hates and loves the Ring, as he hates and loves himself.

- Smeagol's life is a sad story. Yes, Smeagol he was once called. Before the Ring found him. Before it drove him mad.

- It's a pity Bilbo didn't kill him when he had the chance.

- Pity? It is pity that stayed Bilbo's hand.

- Many that live deserve death. Some that die deserve life. Can you give it to them, Frodo?

- Do not be too eager to deal out death and judgment. Even the very wise cannot see all ends.

- My heart tells me that Gollum has some part to play yet, for good or ill before this is over.

- The pity of Bilbo may rule the fate of many.

- I wish the Ring had never come to me.

- I wish none of this had happened.

- So do all who live to see such times. But that is not for them to decide.

[...]