Translation of "「おもしろければ" in English

おもしろければどんな本でもいいですよ。

If it is interesting, any book will do.

おもしろければどんな本でもかまいません。

- Any book will be okay as long as it is interesting.
- Any book will be OK as long as it's interesting.

最終的には 「おもしろければ なんでもいいんだ」と

Some crazy people would be driven by nonsensical mantras

- おもしろければどんな本でもかまいません。
- 面白い本だったら、どんなのでもいいよ。

- Any book will do as long as it is amusing.
- Any book will be okay as long as it is interesting.
- Any book will be OK as long as it's interesting.