Rhetorical devices – examples more specific to speeches http://www.speaklikeapro.co.uk/Rhetorical_devices.htm
John F. Kennedy’s Inauguration address in 1961. The “ask not what your country can do for you, but what you can do for country” speech
http://www.youtube.com/watch?v=BLmiOEk59n8
Churchill’s “Iron Curtain” and “Sinews of Peace” speech
http://www.youtube.com/watch?v=S2PUIQpAEAQ
Barack Obama’s Recent Speech to the UN, regarding Russia’s invasion of Crimea.