How Far Is Too Far?

To say that we live in a sexually charged society would be stating the obvious. As a single Christian, I know it's God's desire for me to be sexually pure. Every person I talk to has drawn a different line in the sand that shouldn't be crossed. So how far is too far? I found a new perspective in John Thomas' answer at Boundless Webzine. Even though his answer is being applied to sexuality, it can be applied to anything in question of how far is too far?

Boundless Answers: How Far Is Too Far?