Some current scientific-engineering curricula consider the rhetorical expression of ideas as separable and inessential to course content; rhetoric is defined as a distinct set of technical skills practiced by specialists. In contrast, the classical definition of rhetoric subordinates the method or technique of expression to the refinement of the native human capacity for persuasive speech. Every person is responsible for expressing thoughts and ideas persuasively, and eloquence is a virtue that cannot be detached from individuals without fundamental change to them. Rhetoric is essential to science because all research involves communication. A model science curriculum requires clear and precise written and oral discourse in each subject that is offered. (MAI)