Final answer:
Altruistic lies are used to spare feelings and maintain relationships, while tactful words and discretion help preserve harmony and prevent conflict.
Explanation:
Altruistic lies are lies told to spare someone from hurtful information or to build their self-esteem. These lies help maintain relationships but can lead to a skewed self-concept in the receiver. In some situations, total honesty may harm a relationship, so tactful words and discretion are used to avoid conflict and preserve relations.
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