Correct ideas come from social practice.

　　正確的思想來(lái)自社會(huì)實(shí)踐。

　　Man's knowledge is not innate but comes from social practice.

　　人的.知識(shí)不是先天就有的，而是從社會(huì)實(shí)踐中來(lái)的。

　　Only social practice can be the criterion of truth.

　　真理的標(biāo)準(zhǔn)只能是社會(huì)的實(shí)踐。

　　Experts say it's an invaluable social practice that results in big benefits ．

　　專家說(shuō),這是一種無(wú)價(jià)的社會(huì)實(shí)踐,可以帶來(lái)巨大的好處。

　　Health is an important social practice which protects human's health.

　　衛(wèi)生是人類重要的社會(huì)實(shí)踐活動(dòng)。