Synthesized answer
The provided passages do not contain information about the practical implications of the "Lives by Plutarch" [1]. The description states that the book offers character studies comparing statesmen and generals of pre-Christian Greece and Rome [1].
Therefore, I cannot answer what the practical implications are based on the given text.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Lives by Plutarch Description: Character studies comparing statesmen and generals of pre-Christian Greece and Rome.