'I propose to lay before you a concise history of Indian chronology extracted from Sanskrit books, attached to no system and as much disposed to reject Mosaick history, if it be proved erroneous, as to believe it, if it be confirmed by sound reason from indubitable evidence'.
I will reject Mosaick history, if it (Mosaick history) is proved erroneous.
I will believe it (Mosaick history), if it (Mosaick history) is confirmed by sound reason from indubitable evidence.
I am equally disposed to both (to reject and to believe Mosaick history).
Who am I? I am the concise history of Indian chronology that William Jones proposes to lay before you. I am extracted from Sanskrit books. I am attached to no system.
(What is Mosaick history? At the time this was written (January 1788), more people took the Old Testament (Moses, Noah, the flood, etc.) as literal history, and did not take the historical accounts of other cultures seriously. (For instance, neither Darwin nor Schliemann had been born.) “Mosaick history” is the account from the Judeo-Christian tradition. “Mosaick” refers to “of Moses”. The term is still used, as in the “Mosaic distinction” idea of Jan Assmann.)