equal to that of a racehorse.

Right: Of course my opinion is worth less than a lawyer's.

Right: The shells used in quail hunting are different from
those used in rabbit hunting.

Self-contradictory: Chicago is larger than any city in
Illinois.

Right: Chicago is larger than any other city in Illinois.

Impossible: Chicago is the largest of any other city in
Illinois.

Right: Chicago is the largest of all the cities in Illinois.
[Or] Chicago is the largest city in Illinois.

Note.--After a comparative, the subject of the comparison should be
excluded from the class with which it is compared; after a superlative,
the subject of the comparison should be included within the class.

Wrong: {taller of all the girls.
{tallest of any girl.

Right: {taller than any other girl [comparative].
{tallest of all the girls [superlative].

Exercise:

1. The climate of America helps her athletes to become superior
to other countries.

2. This tobacco is the best of any other on the market.

3. You men are paid three dollars more than any other factory
in the city.

4. I thought I was best fitted for an engineering course than
any other.

5. Care should be taken not to turn in more cattle than the
grass in the pasture.

=Cause and Reason=

=5. A simple statement of fact may be completed by a _because_ clause.=

Right: I am late because I was sick.

=But a statement containing _the reason is_ must be completed by a _that_
clause.=

Wrong: The reason I am late is because I was sick. [The
"reason" is not a "because"; the "reason" is the fact of
sickness.]

Right: The reason I am late is that I was sick.

=_Because_, the conjunction, may introduce an adverbial clause only.=

Wrong: Because a man wears old clothes is no proof that he is
poor. [A _because_ clause cannot be the subject of _is_.]

Right: The fact that a man wears old clothes is no proof that
he is poor. [Or] The wearing of old clothes is not proof that a
man is poor.

Note.--_Because of_, _owing to_, _on account of_, introduce adverbial
phrases only. _Due to_ and _caused by_ introduce adjectival phrases
only.

Wrong: He failed, due to weak eyes. [Due is an adjective;
it cannot modify a verb.]

Right: His failure was {due to } weak eyes