“The great end of life is not know ledge but action.”
—Thomas Henry Huxley
This text is dedicated to the memory of
Firefighter D ana H annon and his 342 F DN Y brothers
who died in the line of duty,
World Trade Center,
Septem ber 11,2001.
To my wife Blandine,
who showed me that seeking the truth entails
sharpening the taste of beauty, and
who constantly rem inds me that technology
without humanity leads to chaos.
— Hassan Ghaziri
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