At a dinner party, Mark Twain sat across from a lady and, out of politeness, said, you are so beautiful!
However, the lady said haughtily, it is a pity that I cannot praise you in the same way!
Mark Twain said softly and calmly, it doesn't matter, you can lie like me. The lady hung her head in shame.
The stone you throw down is actually the way to block yourself!