Entrepreneurship involves starting a business and taking on risk for potential reward. Successful entrepreneurs have traits like independence, self-confidence, and achievement motivation. Careful planning is needed regarding one's motivations, market research, costs, and whether to start or buy a business. As companies grow, entrepreneurs may feel pressure to formalize operations for focus and returns, which can compromise the entrepreneurial spirit. Managing family businesses or becoming an intrapreneur within a company also have challenges in avoiding conflicts and allowing innovation to flourish.