Once upon a time, a foolish man went to someone's house and was invited to dinner by his master. The man thought the host's food was tasteless, so the host added some salt when he heard about it. After adding salt, the food tastes delicious, so the man thought, "The food tastes delicious because of adding a little salt, so it tastes delicious." Wouldn't it be better to put more? " This man is so stupid that he doesn't want vegetables but only eats salt. Empty mouthfuls of salt spoil the taste, but are harmed by salt.