According to the passage, books live for ever because

Directions: Read the passage and answer the question.

Books are, by far, the most lasting product of human effort. Temples crumble into ruins. Pictures and statues decay, but books survive. Time does not destroy the great thoughts which are as fresh today as when they first passed through their authors minds ages ago. The only effect of time has been to throw out of currency, the bad products, for nothing in literature can long survive but what is really good and of lasting value. Books introduce us into the best society; they bring us into the presence of the greatest minds that have ever lived, we hear what they said and did; we see them as if they were really alive, we sympathise with them, enjoy with them and grieve with them.