Puzzle

[sinjun]

A simple substitution code has been used to conceal a "quote." Work out the code to decipher the original words.

Jack and Jill:
23-5'-22-5 4-5-3-9-4-5-4 14-15-20 20-15
20-1-11-5 21-16 13-15-21-14-20-1-9-14
3-12-9-13-2-9-14-7.

Comments

[eustacio.livejournal.com]

We've decided not to take up mountain climbing.

[damara.livejournal.com]

Yup. That's the one. Good job.