Final answer:
The source of the quote is not distinctively attributed to any well-known individual; however, it touches upon the principles of evolution, a concept central to biology and introduced by Charles Darwin as the theory of evolution by natural selection.
Step-by-step explanation:
The attributed source of the quote, "Life is the most important thing in the world, the most important thing about life is evolution," is not clearly identifiable. This saying does not appear to be a direct quote from a recognized author or scientist, including Charles Darwin.
Nonetheless, evolution is a key concept when discussing life on Earth, introduced by Charles Darwin through the theoretical framework of evolution by natural selection. Darwin's ideas have deeply influenced our understanding of biological diversity and the connections among all forms of life. The theory of evolution is a unifying principle in biology, providing explanations for the variety of life and the mechanisms that lead to the diversity of species we see today. Mutation, natural selection, and common descent are cornerstones of this scientific theory. Although Darwin laid the foundation for evolutionary biology, he did not primarily focus on the origin of life itself, which remains a topic of research and discussion among scientists today.