I am not able to propose an exemplar way of wording things, just throwing ideas out there. This seems like a fun/useful exercise so I'll do some drafting around this since I'm meh at wording in a way that's easy to understand and I want to work on that.
"all stories are immortal / last forever but the way its interpreted can be different depending on the readers"
Literature retains value throughout time in it's ability to address universal ideas such as ambition (Othello), fate (Hamlet) and difficulty in accessing one's interiority (Emily Dickinson/Katherine Mansfield). However, the interpretation of a text evolves over time along with shifting cultural values.
Although literature remains valuable throughout time, the reasons for which it is valued may shift and differ between individuals
The interpretation derived from a text varies greatly from person to person as it is highly dependent on an individual's social and cultural background/the cultural values that surround and influence the individual's perception.
Throughout history, the shifting of social imaginary and normative notions allow a great number of interpretations to be valid of a singular enduring text; it is up to individual perception.