"In this industry, there are only two ways up the ladder. Rung by rung or claw your way to the top. It's sure been tough on my nails"

This quote by Jack Nicholson talks to the trouble of accomplishing success in any market. It indicates that there are 2 paths to success: the difficult way and the more difficult way. The hard method is to take it step by action, gradually and progressively climbing the ladder of success. The harder way is to claw your way to the top, which needs a great deal of hard work and determination. It is a hard journey, and Nicholson indicates that it has actually taken a toll on him, as evidenced by his comment about his nails. This quote functions as a tip that success is difficult to come by, and it takes a lot of effort and commitment to make it to the top.