Possible interpretation: Even though we may want to say No to temptation (doing something bad), our body may be unable to resist it. Origin: This proverb is based on a verse in the Bible (Matthew 26:41): Watch and pray, that ye enter not into temptation; the spirit indeed is willing but the flesh is weak..
The time limits for products liability claims vary from state to state. No state has a statute of limitations for defective product claims of less than one year.
It sounds like you have two questions here. The first one is whether the collector can still try to collect a medical bill that is more than ten years old. That is a matter of state law, and depends on the statute of limitations for that debt. According to my sources, the statute of limitations for most types of debts in Indiana is six years. If the statute of limitations on this debt have indeed expired, then there would not be much the collector could do to force you to pay this debt.