Task: Determine the appropriate intensity class for the tweet, reflecting the level of emotion E experienced by the user. 0: no E can be inferred. 1: low amount of E can be inferred. 2: moderate amount of E can be inferred. 3: high amount of E can be inferred.
Tweet: The point of living, and being an optimist, is to be foolish enough to believe the best is yet to come' - Peter Ustinov  #quote
Emotion: joy
Intensity class: 
1: low amount of joy can be inferred