An old Toad once informed all his neighbors that he was a learned doctor. In fact he could cure anything. The Fox heard the news and hurried to see the Toad. He looked the Toad over very carefully.
- 拓展学习：小词详解 | toady
- 拓展学习：熟词僻义 | doctor 能干什么坏事？
"Mr. Toad," he said, "I've been told that you cure anything! But just take a look at yourself, and then try some of your own medicine. If you can cure yourself of that blotchy skin and that rheumatic gait, someone might believe you. Otherwise, I should advise you to try some other profession."
Those who would mend others, should first mend themselves.
Physician, heal thyself.
