Wind, Sand and Stars by Antoine De Saint Exupery. ISBN: 0151970874
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It's about the early days of flying mail in South America and Europe. But more deeply it's a book about understanding the meaning of human existence.
I re-read this book regularly and I'm always surprised by the new things I find in it.
I should have said that this book is not fiction, rather it is largely autobiographical. Saint Ex was one of those early mail pilots. -- Richie Bielak
Source of the quote Perfection Is Achieved.
What's the French title? Perfection Is Achieved suggests the linked book is a translation. -- Scott Mc Murray
Original french title is "Terre des Hommes". -- StéphaneGourichon
See original on c2.com 