Final answer:
Truman connects freedom, equality, and peace by indicating that they are foundational to each other, specifically suggesting that freedom and equality lay the groundwork for peace.
Step-by-step explanation:
The sentence that describes how Truman connects the themes of freedom, equality, and peace in this excerpt from Harry Truman’s Inaugural Address is 'Freedom and equality are the foundations of peace.' This aligns with the concept that democratic values support the belief that an orderly society can exist in which freedom is preserved, but order and freedom must be balanced.
Additionally, the ideals of the United States and the Universal Declaration of Human Rights suggest that these themes are inherently linked, laying the groundwork for a peaceful society.