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芝诺(埃利亚的) (Zeno of Elea)约公元前490年生于意大利半岛南部的埃利亚;约公元前425年卒.数学家、哲学家,是古希腊早期自然哲学著名人物。另外在希腊哲学中还有个芝诺,英文名是Zero,(336BC---264BC),斯多亚派的第一创始人,属于后苏格拉底时代的,出生于塞浦路斯岛,也是希腊著名的哲学家。大家别把这两个人搞混淆了!!!!
芝诺(Zeno)生活在古代希腊的埃利亚城邦.他是埃利亚学派的著名哲学家巴门尼德(Parmenides)的学生和朋友.关于他的生平,缺少可靠的文字记载.柏拉图在他的对话《巴门尼德》篇中,记叙了芝诺和巳门尼德于公元前5世纪中叶去雅典的一次访问.其中说:“巴门尼德年事已高,约65岁;头发很白,但仪表堂堂.那时芝诺约40岁,身材魁梧而美观,人家说他已变成巴门尼德所钟爱的了。”按照以后的希腊著作家们的意见,这次访问乃是柏拉图的虚构.然而柏拉图在书中记述的芝诺的观点,却被普遍认为是相当准确的.据信芝诺为巴门尼德的“存在论”辩护.但是不象他的老师那样企图从正面去证明存在是“一”不是 “多”,是“静”不是“动”,他常常用归谬法从反面去证明:“如果事物是多数的,将要比是‘一’的假设得出更可笑的结果。”他用同样的方法,巧妙地构想出一些关于运动的论点.他的这些议论,就是所谓“芝诺悖论”.芝诺有一本著作《论自然》.在柏拉图的《巴门尼德》篇中,当芝诺谈到自己的著作时说:“由于青年时的好胜著成此篇,著成后,人即将它窃去,以致我不能决断,是否应当让它问世.”公元5世纪的评论家普罗克洛斯(Proclus)在给这段话写的评注中说,芝诺从“多”和运动的假设出发,一共推出了40个各不相同的悖论.芝诺的著作久已失传,亚里士多德的《物理学》和辛普里西奥斯(Simplici- us)为《物理学》作的注释是了解芝诺悖论的主要依据,此外还有少量零星残篇可提供佐证.现存的芝诺悖论至少有 8个,其中关于运动的4个悖论尤为著名.
一则广为流传但情节说法不一的故事说,芝诺因蓄谋反对埃利亚(另一说为叙拉古)的僭主,而被拘捕、拷打,直至处死.
芝诺因其悖论而著名,并因此在数学和哲学两方面享有不朽的声誉.数学史家F.卡约里(Cajori)说,“芝诺悖论的历史,大体上也就是连续性、无限大和无限小这些概念的历史.”但遗憾的是,芝诺的著作没有能流传下来,我们是通过批评他的亚里士多德及其注释者辛普里西奥斯才得以了解芝诺悖论的要旨的.直到 19世纪中叶,人们对于亚里士多德关于芝诺悖论的引述及批评几乎是深信不疑的,普遍认为芝诺悖论只不过是一些有趣的谬见.英国数学家B.罗素 (Russell)感慨地说:“在这个变化无常的世界上,没有什么比死后的声誉更变化无常了.死后得不到应有的评价的最显眼的牺牲品莫过于埃利亚的芝诺了.他虽然发明了4个无限微妙、无限深邃的悖论,后世的大批哲学家们却宣称他只不过是一个聪明的骗子,而他的悖论只不过是一些诡辩.遭到两千多年的连续驳斥之后,这些“诡辩”才得以正名,….”19世纪下半叶以来,学者们开始重新研究芝诺.他们推测芝诺的理论在古代就没有得到完整的、正确的报道,而是被诡辩家们用作倡导怀疑主义和否定知识的工具,从而背离了芝诺的真正宗旨.而亚里士多德正是按照被诡辩家们歪曲过的形象来引述芝诺悖论的.然而,迄今为止,学者们还找不出可靠的证据足以推翻亚里士多德和辛普里西奥斯关于芝诺悖论的记述.由于目前对希腊哲学史了解得还不够,对于芝诺提出这些悖论的目的何在尚不清楚.比较一致的意见是:芝诺关于运动的悖论并不是简单地否认运动,芝诺责难“多”也不是简单地把两只羊说成一只羊.在这些悖论后面有着更深层的内涵.亚里士多德的着作保存了芝诺悖论的大意,功不可没,但是他对于芝诺悖论的分析和批评并非十分成功,是值得重新研究的.
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