If you have great talents, ...

If you have great talents, industry will improve them: if you have but moderate abilities, industry will supply their deficiency.
 Joshua Reynolds

Quotes from the same author

Our Exhibitions [The Royal Academy] have... a mischievous tendency, by seducing the Painter to an ambition of pleasing indiscriminately the mixed multitude of people who resort to them.
 Joshua Reynolds
The excellence of every art, must consist in the complete accomplishment of its purpose
 Joshua Reynolds
I am convinced that this is the only means of advancing science, of clearing the mind from a confused heap of contradictory observations, that do but perplex and puzzle the Student, when he compares them, or misguide him if he gives himself up to their authority; but bringing them under one general head, can alone give rest and satisfaction to an inquisitive mind.
 Joshua Reynolds
I have heard painters acknowledge, though in that acknowledgment no degradation of themselves was intended, that they could do better without nature than with her; or as they express themselves, 'that it only put them out.
 Joshua Reynolds
Genius is supposed to be a power of producing excellences which are put of the reach of the rules of art: a power which no precepts can teach, and which no industry can acquire.
 Joshua Reynolds