"By natural ability, I mean those qualities of intellect and

disposition, which urge and qualify a man to perform acts which
lead to reputation
"By natural ability, I mean those qualities of intellect and
disposition, which urge and qualify a man to perform acts which
lead to reputation. I do not mean capacity without zeal, nor
zeal without capacity, nor even a combination of both of them,
without an adequate power of doing a great deal of very
laborious work. But I mean a nature which, when left to itself,
will, urged by an inherent stimulus, climb the path that leads
to eminence, and has strength to reach the summit--one which,
if hindered or thwarted, will fret and strive until the
hindrance is overcome, and it is again free to follow its
labor-saving instinct."[2]