Answer:
The expression or application of human creative skill and imagination, typically in a visual form such as painting or sculpture, producing works to be appreciated primarily for their beauty or emotional power.
Explanation:
The person who maintained that the actor should be coldly unemotional was Denis Diderot.
Denis Diderot was a French critic, philosopher, and writer, and he wrote in his "Paradox of the Actor" what a perfect actor would behave like. In his opinion, no emotions should be present when that person acts, but rather the actor should show rational intelligence and aesthetic judgment.