In plain words
From Satya all things were created; into Satya the whole creation subsides; search where you will, what place is without Satya? That itself is pure sattva; come and see.
Ekaṃ sat viprā bahudā vadanti. Though Satya is one alone, the ṛṣis went on giving it many names. Satya is no one person's property. It does not belong to any one country. It does not belong to any one religion either. It does not belong to any one age. Satya is beyond place, time, person and religion. People of every country, of every religion and of every age have the full right to follow this Satya. Satya follows no one. Every single human being must follow Satya alone. Manu, the grandsire of mankind, went on teaching this very Satya to the world. Because they came forth from Manu himself, man came to be called manuja and mānava. Manu's command is that man must give up everything to keep his word of truth. But under the sway of the conditions of place and time, a path contrary to this is being lived today.
Satya brings people's opposition; untruth delights the people; liquor is sold where it stands, while curds and the like are drunk from house to house.
To the man of today it seems very tasty. They go on taking Satya as an enemy. The man of today is trying to know everything, but he is not trying to know Satya. Every enjoyment and every fortune is gained from Satya itself. In ancient times they were able to rule by Satya alone. Satya is character, Satya is religion, Satya is life-breath, Satya is tapas, Satya is God. Man's weakness shows itself in this: forgetting such eternal Satya, putting his faith in untruth, which is of nature and passing, he loses his humanness.
Manu went on making another matter known as well.