Analysis of test questions: The epigram of the stem describes sailing with the current, not against the current, which shows that we should respect objective laws and act according to them in order to get twice the result with half the effort. ① It describes planting according to the banker's law, ② it describes chopping wood according to the pattern, ③ it describes planting according to the season, so ① and ③ both show that we should act according to the objective law and meet the question. (4) subjective idealism, does not conform to the meaning of the question. Choose a as the answer to this question.