Identifying Rhetorical Strategy in Education Editorial

Read the following passage from an editorial:

“While education is often viewed as an individual achievement, it is fundamentally a collective endeavor. The success of one student adds to the tapestry of a community's intellect and morality. Therefore, when we underfund education, we neglect not only our children but our society at large. Investing in quality education should be prioritized as not just a budget item, but as a moral imperative.”

In the excerpt, the author primarily employs which rhetorical strategy to strengthen their argument about education?