1) The document discusses the differences between contributors and non-contributors. Contributors are focused on goals and finding appropriate methods to achieve them, while non-contributors are rigid in their procedures. 2) Contributors consider new possibilities in their thinking, while non-contributors only consider the two given options. Contributors begin by assuming goals can be achieved, while non-contributors discuss difficulties. 3) Contributors are willing to take risks and overcome their fear of failure, seeing it as a learning experience. They view challenges as adventures. Non-contributors fear failure and losing confidence or image.