But if, for example, it seems irrefutable that one plus one always equals two, I won't shy away from that.

But:

1 + 1 = 10


























in base 2.

:-p

But seriously, "Where you stand depends on where you sit." The rules of addition are clear, as are the symbols around them. But everyone needs to agree upon the rules for the system to work. If you're doing addition in base 10 and others are doing it in base 2, then there will be disagreements on what the symbols mean.

Similarly with other human constructions like laws and ethics.

Cheers,
Scott.