You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

I believe in what President JFK said on June 10, 1963 at American University: "If we cannot now end our differences, at least we can help make the world safe for diversity." USA is a free &amp; diverse nation...from that diversity we gain our strength. https://t.co/vpk2NbFoWl