Why is this little caterpillar so pitiful? What does he think?

A poor and clumsy little caterpillar, instead of being pessimistic and disappointed, did his work wholeheartedly and finally became a smart and light butterfly. Through the appearance of caterpillars, tell every child not to feel inferior and disappointed because he is not as good as others, but to be optimistic and confident. Only in this way can we feel the happiness and beauty of life and really make a difference.