Liars are people who don’t tell the truth.
Answer:
Refutation.
Explanation:
A refutation is a speech - or even a part of an essay - which addresses and disproves opposing arguments. That is, in this type of persuasive speech, you are replying to arguments made against your position in the matter. When responding, you try not only to discredit what the opposition says, but also to prove your opinion is the right one. Persuasive essays, in their turn, usually have a refutation paragraph or section in which the authors anticipate what others may say, and respond to those possible arguments so as to prove their opinions right.
In the story, "Gift of the Magi", Della sacrificed her hair to buy her husband a platinum fob chain for his watch as her Christmas gift to him. Unknown to her, James sold off his watch to buy her a set of combs she has been lusting upon for so long.
Both items were of great value to each of them but they each sacrificed it to buy gifts that they believe will give happiness to each other and to show how much they love one another.
Sacrifice is a virtue to be valued because it is one way of expressing deep love to your loved ones. You would rather suffer a bit of self-disappointment to make your love ones happy.