他是一位法国数学家。
人的伟大在于他思想的力量。 —布莱斯·帕斯卡，法国数学家。
Man's greatness lies in his power of thought. —Blaise Pascal, French mathematician.
17世纪法国数学家笛沙格在射影几何方面的工作具有创造性成就。
Desargues who was a French mathematician in 17th century had made creative achievement in the aspect of projective geometry.
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