Rich and poor are relevant to some other condition or standard. For example, in relation to the Sultan of Brunei almost all of us are poor.
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Blaise Pascal invented pathway questions.
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Just that: Blaise Pascal.
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Blaise Pascal was in Biology
Blaise Pascal
Blaise Pascal's wife was Antoinette Arnould.
Blaise Pascal was conceived, not invented. He was a person!
blaise pascal invented the calculator
Blaise Pascal was born on June 19, 1623
Blaise Pascal was a mathemation he was the inventure of the triangle