Yào wánquán de fǎnyìng zhěnggè de shìwù, fǎnyìng shìwù de běnzhì, fǎnyìng shìwù de nèibù guīlǜxìng, jiù bìxū jīngguò sīkǎo zuòyòng, jiāng fēngfù de gǎnjué cáiliào jiāyǐ qùcūqǔjīng, qùwěicúnzhēn,yóucǐjíbǐ, yóubiǎojílǐ de gǎizào zhìzuò gōngfu, zàochéng gàiniàn hé lǐlùn de xìtǒng, jiù bìxū cóng gǎnxìng rènshi yuèjìn dào lǐxìng rènshi.[Pinyin]
Fully to reflect a thing in its totality, to reflect its essence, to reflect its inherent laws, it is necessary through the exercise of thought to reconstruct the rich data of sense perception, discarding the dross and selecting the essential, eliminating the false and retaining the true,proceeding from the one to the other and from the outside to the inside, in order to form a system of concepts and theories—it is necessary to make a leap from perceptual to rational knowledge.
