Authors:

I do not see in what manner practice alone can be sufficient for the production of correct, excellent, and finished pictures. Works deserving this character never were produced, nor ever will arise, from memory alone.

Sir Joshua Reynolds (1824). “The Complete Works of Sir Joshua Reynolds: First President of the Royal Academy : with an Original Memoir, and Anecdotes of the Author”, p.79
I do not see in what manner practice alone can be sufficient for the production of correct, excellent, and finished pictures. Works deserving this character never were produced, nor ever will arise, from memory alone.