- You think he could be so unfaithful?
- Faithfulness is merely laziness.

Basil Hallward (Lowell Gilmore)

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

You can hear this line at 00:29:49.080 in the Blu-ray version of the movie.

Quote context

[...]

- You don't approve. You can't possibly.

- I never approve or disapprove of anything.

- Dorian Gray falls in love with a beautiful girl and proposes to marry her. Why not?

- Every experience is of value. And whatever can be said against marriage, it's certainly an experience.

- Dorian will make this girl his wife and six months later, he'll become infatuated with someone else.

- You think he could be so unfaithful?

- Faithfulness is merely laziness.

- Number Seven, sir.

- I've been watching for you.

- Go to Lower Euston Road, Number 22.

- Lower Euston Road, sir?

- Lower Euston Road.

- Yes, sir.

- They're always surprised when I give them that address.

[...]