Being able to receive and process challenging, constructive feedback is a crucial skill for entrepreneurs, but we should not surround ourselves with people who continually doubt our ability to succeed over the long term. There is a big difference between “cannot be done” and “here is why that approach will not work.” Regularly carve out time with people who both challenge and support you, and learn to ignore the naysayers. The most successful writers, entrepreneurs, politicians, parents, and leaders surround themselves with others who are pursuing high achievement and who consistently challenge and support one another.