Who said "The warrior's greatest battle is with himself."?

This quote is attributed to Juvenal.

The warrior's greatest battle is with himself. - Juvenal

"The warrior's greatest battle is with himself."

Juvenal Courage

Poet Satirist Ancient Rome 60–130

"Bread and circuses - that is what the people desire."

"Nothing is so unbelievable that oratory cannot make it acceptable."

"Who will guard the guards themselves?"

"Honesty is praised and starves."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."