Meditations on FirstPhilosophy by Rene Descartes - (Download PDF).
第一哲学沉思录(笛卡尔)-下载。
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Ontology was once called "the firstphilosophy". It contained deep humane concern.
本体论曾被称为“第一哲学”，它饱含着浓厚的人文关怀。
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Even Descartes' hugely influential Meditations on firstPhilosophy, published in 1641, was written first in Latin and only later translated into French.