Authority can be a powerful tool to inspire your team, but it must be used appropriately. When using authority effectively, you should set direction and standards by defining the vision, mission, and objectives of your startup. Establish clear roles and responsibilities for your team, and set high but realistic expectations. You should also empower your team to make decisions and take actions, while providing support and resources. Additionally, use your authority to reward and recognize your team's efforts and achievements. Give positive feedback and praise, celebrate successes and milestones, and offer incentives. On the other hand, don't use authority to micromanage or control, criticize, blame, or intimidate your team. Avoid fear or pressure as a motivator, and don't abuse or misuse your power or position. Be fair and respectful to your team.