Unfortunately for the majority of us, motivation is cyclical. One week you may be extremely motivated and productive, and then the very next, nothing seems to go right. Whether this describes your current situation or a past situation, have no doubt that eventually it will happen again. Preparing for one of these lulls in motivation ahead of time will help you tackle them when they occur! These 20 motivational quotes will inspire you and alter your perspective so that you can get back on track faster!