Thank you very much. Could you check if the final version is OK? I made changes in 1 and 6 and I corrected the mistakes.

1) According to Lord Henry, their age needs a new form of hedonism, that is the pursuit of pleasure as the greatest goal in life.
2) Influenced by Lord Henry’s words on youth and beauty, he is terrified of aging. He fears that he will lose everything when he loses his youth.
3) The power of Lord Henry’s words succeeds in dominating Dorian (playing with his mind, manipulating him) and making him live his life for art and forget moral responsibility.
4) When Dorian looks at the painting, he is quite moved, as if he sees himself for the first time. Recalling the words of Lord Henry, he first recognizes the extraordinary beauty and youth in the portrait and then is pained by the thought of losing it.
5) He envies the figure in the painting and says that he would give his soul to be young forever as the painting will be.
6) He impulsively vows that he will when he grows old and wishes that the portrait would age in his place whereas he remains young.

Looks fine.

Sra

1) According to the changes you made, the sentence now reads: "According to Lord Henry, their age needs a new form of hedonism, which is the pursuit of pleasure as the greatest goal in life." It seems correct.

To check if a sentence is grammatically correct, you can follow these steps:
- Read the sentence aloud and see if it flows smoothly.
- Check if the subject and verb agree in number (singular or plural).
- Look for any missing words or incorrect word usage.
- Consider the overall meaning and context of the sentence.

In this case, the sentence seems grammatically correct based on these steps.

6) According to the changes you made, the sentence now reads: "He impulsively vows that he will when he grows old and wishes that the portrait would age in his place while he remains young." It also seems correct.

To check the correctness of a sentence, you can follow these steps:
- Read the sentence aloud and see if it makes sense.
- Ensure that the subject and verb agree in number.
- Confirm the use of correct grammar and vocabulary.
- Verify that the sentence conveys the intended meaning.

In this case, the sentence appears to be grammatically correct and conveys the intended meaning.