Plutarchus:
Ploutarchos, Ancient Greek: Πλούταρχος, or Plutarchus,
Roman name: L. Mestrius Plutarchus.
Important historian and philosopher from the time of ancient Greece. He lived from around 46 to at least 120 AD; his exact date of death is not known.
The brain is not a glass to fill, but a lamp to light.
What we achieve inwardly will change outer reality.
The wildest colts make the best horses.
The pot boils, friendship lives.
You must not fight too often with one enemy, or you will teach him all your art of war.