Who said "A man's own manner is his best introduction."?

This quote is attributed to Plutarch.

A man's own manner is his best introduction. - Plutarch

"A man's own manner is his best introduction."

Plutarch

Historian Biographer Greece (Chaeronea) 46–120

"The mind is not a vessel to be filled, but a fire to be kindled."

"What we achieve inwardly will change outer reality."

"Be kind and merciful. Let no one ever come to you without leaving better and happier."

"Know thyself."