Can you remember a time when someone chose to speak well of you? The words might have left you happily surprised. The encouragement might have spurred you to tackle a task with new energy, just because someone expressed confidence in you! We've all had the opposite experience as well -- feeling unhappily surprised, stung and belittled, sapped by the words of someone who was eager to pass on a negative opinion. Given a choice, we all prefer that other people speak good things both about us and to us!
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I strongly urges LZ to apologize to Teacher Chen and close this thread.