"A study of the history of opinion is a necessary preliminary to the emancipation of the mind." John Maynard Keynes.
Although Keynes was an economist, his observation that the study of history - of opinion and otherwise - is the key to freedom was dead-on. When people blithely accept what is, and do not understand the past, they are likely to be trapped in a mentality of complacency. Understanding the past - as well as current events - is indispensable to ensuring liberty today and in the future.
That is why Patriot Week is so important - it enables us to understand the foundation of our liberty, and how to preserve today and the in future. See also America's Survival Guide for more insights.