Epictetus emphasizes the importance of applying philosophical knowledge through actions rather than merely displaying it. He suggests that true understanding of philosophy is demonstrated by how one lives their life, rather than through talk or ostentation. Observing a person's behavior provides a clearer insight into their beliefs and wisdom than their words alone ever could.

This advice encourages a practical approach to philosophy, urging individuals to embody the principles they have learned. By showing growth and virtue in everyday life, one can inspire others and convey the essence of philosophical teachings effectively.