It's your best work, Basil. The best thing you've ever done.

3 seconds sound clip from the The Picture of Dorian Gray movie soundboard.

You can hear this line at 00:03:13.353 in the Blu-ray version of the movie.

Quote context

[...]

- Eighteen, I think you said, sir.

- Shall I wait, sir?

- Yes.

- Among Lord Henry's friends was the painter Basil Hallward. He had been strangely secretive about his latest painting and Lord Henry, sensing a mystery, determined to discover what it was that his friend wished to conceal.

- I'm sorry, my lord, Mr. Hallward is not at home.

- Mr. Hallward doesn't wish to be disturbed.

- It's your best work, Basil. The best thing you've ever done.

- Of course, I can't believe that anyone is really as handsome as that portrait.

- Who is he? What's his name? Why are you being so secretive about it?

- It's a great painting. You ought to send it to the Grosvenor and let everyone admire it.

- I shall not send it anywhere.

- But why?

- I've put too much of myself into it.

[...]