In reply to sjc: surely, its about acceptance of risk, know when and when not to push it!!!!
As implied this can only come from experience and knowing your own ability!
However if a new beginner enters into our sport too afraid to push themselves then surely their own progression would be hindered???
I also think that trust in your belayer is key, if you know and trust your belayer then you definately will be more inclined to push yourself, trust in your gear when climbing trad helps too, as i found in 2005 when i probably shouldnt have lol.
just thoughts