In the investigation of “what is rhetoric?”, this one line of Gorgias sums up the reason rhetoric is such an important topic. Its subtlety is overlooked and mistaken for something inconsequential. However, as Gorgias points out, this small secret body has great power. The implicit use of the word body gives rhetoric an almost physical existence and ability to move an object; as if rhetoric had the physical ability to push, pull, or lift another body. In defining what rhetoric is, this statement tells us first why it is even important to know what rhetoric is.
Gorgias’ thoughts on what rhetoric is suggests it is persuasion by “trickery” or “magic”. This further describes rhetoric’s power as not just physical, but perhaps supernatural. The comparison is made between rhetoric and drugs. Just as a drug can impair judgment, making one vulnerable, rhetoric, too, can play tricks on the mind. Furthermore, the power of rhetoric can be a great force for good, persuading one or many to do good. The drug analogy applies here also as many drugs heal, promote health, and ward off sickness. This two-edged sword aspect of rhetoric is just another example of the power this small body possesses.
The great power of rhetoric, which is only known to be had by humans, has given them undisputed superiority among all animals on earth. The ability to read, write, speak, or otherwise communicate rhetoric is one of the greatest gifts given to man.