As you rightly said, it is a magnificent summing up of Caesar's.
Especially because it is by a contemporary of him and a man that never really "liked" the stateman Caesar.
In 10 words (in the Latin text) Cicero managed to describe JC.


BTW, here are the Latin sentences, as on The Latin Library :

XLV (116) Fuit in illo ingenium, ratio, memoria, litterae, cura, cogitatio, diligentia

In that man were combined genius, method, memory, literature, prudence, deliberation, and industry.

XLVI (117) Cum illo ego te dominandi cupiditate conferre possum, ceteris vero rebus nullo modo comparandus es.

With him I can, indeed, compare you as to your desire to reign; but in all other respects you are in no degree to be compared to him.