" Greenlights can also be disguised as yellow and red lights. A caution, a detour, a thoughtful pause, an interruption, a disagreement, indigestion, sickness, and pain. A full stop, a jackknife, an intervention, failure, suffering, a slap in the face, death. We don’t like yellow and red lights. They slow us down or stop our flow. They’re hard. They’re a shoeless winter. They say no, but sometimes give us what we need. "

― Matthew McConaughey , Greenlights