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Subba Rao Chaganti

      Addition by Subtraction

      Addition by Subtraction? Sounds paradoxical? Unbelievable? Consider what Lao Tzu, the great Chinese philosopher said 2,500 years ago. Here is the essence of what he said: To attain knowledge, add things everyday. To attain wisdom, subtract things everyday. Profit comes from what is there, and usefulness comes from what is not there.

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