What arguments Themistocles convinced fellow citizens to start building a fleet?

He used the anger of the citizens against Aegina. “Then Themistocles gradually began to draw the Athenians to the sea, pointing out to them that on land they are not able to measure their strength even with their neighbors, and with the help of a strong fleet they can not only repel the barbarians, but also rule over Hellas.”

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.