There's been countless videos of Arnold (mostly his 6 points), but I hadn't seen this one.

The only way that you really know that you can lift 500lbs is if you're willing to fail. If you're afraid of failure then you will never grow. The people that grow the furthest are the people that really don't care. They fail or they make it. They're gonna take that risk.
That was one of the toughest things for me to overcome. I've gotten to the point to where I'll try to move the weight rather than tell myself "it's too heavy". I may not get it, but I'll try again until I do. I think that's why I've hit more PR's in the past couple months.