Art
Art is a diverse range of human activities in creating visual, auditory or performing artifacts (artworks), expressing the author's imaginative or technical skill, intended to be appreciated for their beauty or emotional power. In their most general form these activities include the production of works of art, the criticism of art, the study of the history of art, and the aesthetic dissemination of art.
World
The world is the planet Earth and all life upon it, including human civilization. In a philosophical context, the "world" is the whole of the physical Universe, or an ontological world (the "world" of an individual). In a theological context, the world is the material or the profane sphere, as opposed to the celestial, spiritual, transcendent or sacred spheres. "End of the world" scenarios refer to the end of human history, often in religious contexts.
World
Heed not the folk who sing or say
In sonnet sad or sermon chill,
"Alas, alack, and well-a-day!
This round world's but a bitter pill."
We too are sad and careful; still
We'd rather be alive than not.
Graham R. Tomson, Ballade of the Optimist; reported in Hoyt's New Cyclopedia Of Practical Quotations (1922), p. 911-17.