Based on the given tweet, determine the level of sadness the author is experiencing. Choose from the following options: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.
Tweet: #Worry never robs tomorrow of its #sorrow; it only saps today of its #strength - A. J. Crown #faith #positive #motivation