For the first time he became conscious of his youth and conscious of the fact that one day he would lose it.

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

You can hear this line at 00:09:17.099 in the Blu-ray version of the movie.

Quote context

[...]

- The world is yours for a season. It would be tragic if you realized too late as so many others do that there is only one thing in the world worth having, and that is youth.

- Dorian Gray had never heard the praise of folly so eloquently expressed.

- The creed of pleasure soared into a philosophy of life while Dorian stood as if he were under a spell.

- He felt afraid of Lord Henry's ideas and ashamed of himself for being afraid.

- It was as if he were learning to know himself for the first time, as if a stranger had revealed his own most secret thoughts to him.

- For the first time he became conscious of his youth and conscious of the fact that one day he would lose it.

- My visit to you hasn't been wasted. I've found a rare and beautiful butterfly, Euvanesse antiope. It's very unusual in England. Don't you think it's beautiful, Mr. Gray?

- Yes, Lord Henry, very beautiful.

- You may sit down now, Dorian.

- I'm glad you met Lord Henry after all.

- Are you glad, Mr. Gray?

- I'm glad now. I wonder if I shall always be glad.

[...]