Adhere to dialectical materialism and oppose metaphysics.
Mandarin
事物的矛盾法则，即对立统一的法则，是唯物辩证法的最根本的法则。
事物的矛盾法則，即對立統一的法則，是唯物辯證法的最根本的法則。
shì wù de máo dùn fǎ zé ， jí duì lì tǒng yī de fǎ zé ， shì wéi wù biàn zhèng fǎ de zuì gēn běn de fǎ zé ．
The law of contradiction in things, that is, the law of the unity of opposites, is the basic law of materialist dialectics.
Mandarin
但是这种尊重，是给历史以一定的科学的地位，是尊重历史的辩证法的发展，而不是颂古非今，不是赞扬任何封建的毒素。
但是這種尊重，是給歷史以一定的科學的地位，是尊重歷史的辯證法的發展，而不是頌古非今，不是讚揚任何封建的毒素。
dàn shì zhè zhǒng zūn zhòng ， shì gěi lì shǐ yǐ yī dìng de kē xué de dì wèi ， shì zūn zhòng lì shǐ de biàn zhèng fǎ de fā zhǎn ， ér bù shì sòng gǔ fēi jīn ， bù shì zàn yáng rèn hé fēng jiàn de dú sù ．
However, respect for history means giving it its proper place as a science, respecting its dialectical development, and not eulogizing the past at the expense of the present or praising every drop of feudal poison.