Who is fergus millar? when was this document written?

The following text is from The Crowd in the Late Republic, written by Professor Fergus Millar in 1998. The book focuses on the role of Roman people in the government during the final decades of the Roman Republic. Millar is a British historian and professor of Ancient History at Oxford University

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

b) the confederacy had to pay all union war expenses.