State was perpetually scouting for that rare man with proven abilities who also bad the potential for further intellectual growth.
These letters should emphasize the candidate's proven abilities in the areas of physical training, leadership potential, and extra-curricular activities.
(A degree of proven administrative ability is desirable for some assignments.)
A player of Douglas's proven abilities in that regard would be especially useful in this scheme.
But given the proven abilities of the band members, there ought to be a little more room for musicianly flash.
The job required a man of skill, intelligence, experience, with proven managerial abilities.
Still, with his proven ability on long snaps, the cutdown numbers should work for Pollack.
Five judges select a winner based on their proven comedic ability, talent, dedication and potential.
Mr. Annan, an experienced man of proven managerial ability, is up to the job.
After all, the doctor thought, how can I hope to be any better than my proven abilities?
