For natural ability without training is blind: and training without natural ability is defective, and practice without both natural ability and training is imperfect.
 Plutarch, Moralia (c. 100 AD). copy citation

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Author Plutarch
Source Moralia
Topic practice ability
Date c. 100 AD
Language English
Reference
Note Translated by Arthur Richard Shilleto
Weblink http://www.gutenberg.org/files/23639/23639-h/23639-h.htm

Context

“Now the foundation must be laid in training, and practice gives facility, but perfection is attained only by the junction of all three. For if any one of these elements be wanting, excellence must be so far deficient. For natural ability without training is blind: and training without natural ability is defective, and practice without both natural ability and training is imperfect. For just as in farming the first requisite is good soil, next a good farmer, next good seed, so also here: the soil corresponds to natural ability, the training to the farmer, the seed to precepts and instruction.” source