Entrepreneurs emphasize the importance of believing in your own ideas because in the process of developing those ideas you are likely to hear from skeptics. characteristically, they also know that success or failure is "on them." these attributes are described as

These attributes (the importance of believing in your own ideas and the belief that success or failure is "on them" ) are described as self-directed and self-nurturing attributes. These two attributes, together with action oriented, highly energetic, and tolerant of uncertainty characterize successful entrepreneurs. 

What was the length to begin with?

Ibelieve appendix i maybe wrong