No one can cause you to have any kind of emotional reaction without your first giving them permission to do so. You alone are responsible for your feelings and emotions. When you know what you plan to do with your life, you will not allow annoying situations to deter you from your goals for long. If you set ambitious goals for yourself and work enthusiastically toward them, you will quickly realize that you don’t have time to allow petty annoyances to upset you and keep you from your objectives.
– Napoleon Hill