Given the emotion fear and the tweet "#Worry, #doubt, #fear and #despair are the enemies which slowly bring us down to the ground and turn us to dust before we die.", classify the intensity of the emotion displayed in the tweet. The classification options are: 0: no fear can be inferred, 1: low amount of fear can be inferred, 2: moderate amount of fear can be inferred, 3: high amount of fear can be inferred.