Task: Determine the degree of intensity for emotion E in the tweet, giving it a score between 0 and 1, where 0 signifies the least intensity and 1 signifies the greatest intensity.
Tweet: The #pessimist complains about the wind; the #optimist expects it to change; the realist adjusts the sails.' - William Arthur Ward\n#IGNITE
Emotion: sadness
Intensity score: 
0.271