Determine how strongly sadness is expressed in the following tweet. Use the scale: 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: I'm so proud he understands this, he shows love, thought and compassion    and it's not done in a clouded way..
0: no sadness can be inferred