Heavy Construction
The Allen and Greenough is still under construction;
so some links may not work quite the way you would expect.
 
 
 
 
292.
 When two qualities of an object are compared,
both adjectives are in the Comparative: -  
- longior quam latior acies erat (Liv. xxvii. 48), the
line was longer than it was broad (or, rather long than broad).
 
- vérior quam grátior (id. xxii. 38), more true
than agreeable.
NOTE:  So also with adverbs:  as, - libentius quam vérius (Mil. 78), with
more freedom than truth. 
a. Where magis is used, both adjectives are in the
positive: -  
- disertus magis quam sapiéns (Att. x. 1. 4), eloquent
rather than wise. 
- clárí magis quam honestí (Iug. 8), more renowned than
honorable.
NOTE:  A comparative and a positive, or even two positives, are
sometimes connected by quam. This use
is rarer and less elegant than those before noticed: -  
- clárís mâióribus quam vetustís
(Tac. Ann. iv. 61), of a family more famous than old. 
- vehementius quam cauté
(Tac. Agr. 4), with more fury than good heed.
 
 
 
