In the sense of mine:
Art is the creation of beautiful things or thought provoking work.
Some Famous Definitions about Art:
Leo Tolstoy, says about Art in his essay “What Is Art?“:
Art is not, as the metaphysicians say, the manifestation of some mysterious idea of beauty or God; it is not, as the aesthetical physiologists say, a game in which man lets off his excess of stored-up energy; it is not the expression of man’s emotions by external signs; it is not the production of pleasing objects; and, above all, it is not pleasure; but it is a means of union among men, joining them together in the same feelings, and indispensable for the life and progress toward well-being of individuals and of humanity.
He also says that, art must create a specific emotional link between artist and audience, one that “affects” the viewer. Thus, real art requires the capacity to unite people via communication (clearness and genuineness are therefore crucial values). This aesthetic conception led Tolstoy to widen the criteria of what exactly a work of art is. He believed that the concept of art embraces any human activity in which one emitter, by means of external signs, transmits previously experienced feelings. Tolstoy offers an example of this: a boy that has experienced fear after an encounter with a wolf later relates that experience, infecting the hearers and compelling them to feel the same fear that he had experienced—that is a perfect example of a work of art. As communication, this is good art, because it is clear, it is sincere, and it is singular (focused on one emotion).
Aristophanes, The Greek philosopher says about art in the 4th century B.C.:
Let each man exercise the art he knows.
Oscar Wilde in The Soul of Man Under Socialism:
Art is the most intense mode of individualism that the world has known.
Thomas Merton in No Man Is An Island:
Art enables us to find ourselves and lose ourselves at the same time.
Charles Eames says about art.
Art resides in the quality of doing; process is not magic.
Elbert Hubbard in a 1908 volume of Little Journeys to the Homes of Great Teachers:
Art is not a thing—it is a way.
André Gide says in Poétique:
Art begins with resistance—at the point where resistance is overcome. No human masterpiece has ever been created without great labor.
According to Friedrich Nietzsche,
We have our Arts so we won’t die of Truth.
Michelangelo Pistoletto says in Art’s Responsibility:
Above all, artists must not be only in art galleries or museums—they must be present in all possible activities. The artist must be the sponsor of thought in whatever endeavor people take on, at every level.
Federico Fellini in The Atlantic,
All art is autobiographical; the pearl is the oyster’s autobiography.
Hugh MacLeod in Ignore Everybody: and 39 Other Keys to Creativity:
Art suffers the moment other people start paying for it.