How we cite our quotes: (Sentence)
Quote #4
[...] Some would have us accept them at their word and accommodate ourselves to their aggressive impulses. But if history teaches us anything, it teaches that simple-minded appeasement or wishful thinking about our adversaries is folly. It means the betrayal of our past, the squandering of our freedom. (152-154)
Here's the crux of the issue: agreeing to a nuclear freeze would imply the United States, and therefore all democratic and free nations around the world, have something to fear from the communist countries. According to Reagan, that would be the absolute worst message to send, and history has proven that it doesn't even really work, so there has to be another, better solution.
Quote #5
While America's military strength is important, let me add here that I've always maintained that the struggle now going on for the world will never be decided by bombs or rockets, by armies or military might. The real crisis we face today is a spiritual one; at root, it is a test of moral will and faith. (159-160)
A ton of the twentieth century involved various military conflicts around the world, with the U.S. military going into different countries to help the locals climb out of oppression and prosper as free, democratic nations. No matter how you feel about the military, it's easy to understand why those actions, however noble in their intent, weren't always received super well.
Reagan had enlisted during World War II, had lived through Vietnam, and understood the blurry line between good and evil, especially where the American military muscle was concerned. Therefore, ideological problems between the U.S. and the Soviet Union needed ideological solutions.