If it is true that...

Political writing is often bad and imitative

and

Political language consists largely of euphemism and vagueness

Then it must be true that...

This style of writing can partially conceal the writer's meaning

If it is true that...

Many political words are used in variable meanings, often dishonestly

and

The whole tendency of modern prose is away from concreteness

Then it must be true that...

This style of writing can partially conceal the writer's meaning

If it is true that...

Modern writing often consists of long strips of words set in order by someone else

and

Using ready-made phrases is easy and requires less effort

Then it must be true that...

This style of writing can partially conceal the writer's meaning