How does the modern era differ from the classical era?

More technologically advanced things here, such as electronic cars that can drive by themselves, a smartphone with a touchscreen. There are also constuction trucks and things to that nature that were not like the ones in the past. There are computers and artificial intelligence also.

Hopes this helps.

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.