Talks of our Time By Alex Merry

From Winston Churchill's 'Blood, Toil, Tears and Sweat' to Steve Jobs' 'How to Live Before you Die', history has proven time and time again that great speeches change lives. In this series, Alex Merry asks some of today's tech titans, scientists, Olympians and comedians to share five talks that have inspired them on their journeys to creating change. Produced by Benedict Holzmann.