While your time and your labor may be subject to the demands of your employer and others, your mind is the one thing that cannot be controlled by anyone but you. The thoughts you think, your attitude toward your job, and what you are willing to give in exchange for the compensation you are paid are entirely up to you. It is up to you to determine whether you will be a slave to a negative attitude or the master of a positive one. Your attitude, your only master in life, is entirely within your control. When you control your attitude toward events, you control the eventual implication of those events.