My two subjects are Charles Darwin and Stephen Hawking and my chosen quotes follow:
"In the struggle for survival, the fittest win out at the expense of their rivals because they succeed in adapting themselves best to their environment."
Book: Browne, Janet. Knopf, 'Charles Darwin : The Power of Place.' Sydney: Angus & Robertson Ltd., 2002.
"Intelligence is the ability to adapt to change."
Documentary: Stephen Hawking - Master of the Universe. IWC Media Production, 2008.
"Nicole has developed a simple, cheap way of producing solar cells in a pizza oven that could eventually bring power and light to the 2 billion people in the world who lack electricity." - The Sydney Morning Herald
Newspaper: "Thinking outside the square finds light in oven", The Sydney Morning Herald, Deborah Smith, 20 Aug 2008 .