I just read in another thread that we shouldn't force people to drink tea if they're not into it.

So no, you don't have to read it.

Ideas are mostly worthless. It's all in the execution.

Take Game Of Thrones (ASOIAF): is there any ground-breaking idea in there? No. It's just a really well-written series that gets us invested.

A book could be based on something really original, or not, but that doesn't factor in the quality or success of the book.

This applies to pretty much any creative field.