Who said "A man is defined not by his birth, but by his deeds."?

This quote is attributed to Leonidas I.

A man is defined not by his birth, but by his deeds. - Leonidas I

"A man is defined not by his birth, but by his deeds."

Leonidas I

King Warrior Ancient Greece 540–480

"This is Sparta!"

"Spartans! Tonight we dine in hell!"

"A man's true measure is taken not in a moment of comfort and convenience, but in a moment of challenge and adversity."

"Freedom isn't free, it requires sacrifice and courage."