Authors:

Natural selection saw to it that professional heroes who at a crucial moment tended to ask themselves questions like 'What is my purpose in life?' very quickly lacked both.

Terry Pratchett (2008). “Interesting Times: (Discworld Novel 17)”, p.139, Random House
Natural selection saw to it that professional heroes who at a crucial moment tended to ask themselves questions like 'What is my purpose in life?' very quickly lacked both.