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The first English use of the expression "meaning of life" appears in Thomas Carlyle's Sartor Resartus (1833–1834), book II chapter IX, "The Everlasting Yea". [1]Our Life is compassed round with Necessity; yet is the meaning of Life itself no other than Freedom, than Voluntary Force: thus have we a warfare; in the beginning, especially, a hard-fought battle.
The biosphere is postulated to have developed, from the origin of life onwards, at least some 3.5 billion years ago. [79] The earliest evidence for life on Earth includes biogenic graphite found in 3.7 billion-year-old metasedimentary rocks from Western Greenland [ 74 ] and microbial mat fossils found in 3.48 billion-year-old sandstone from ...
The underlying hypothesis held by Oparin, Haldane, Bernal, Miller and Urey, for instance, was that multiple conditions on the primeval Earth favoured chemical reactions that synthesized the same set of complex organic compounds from such simple precursors. Bernal coined the term biopoiesis in 1949 to refer to the origin of life. [33]
Scientists have debated the definition of life for decades, but they still lack a consensus on the answer. Skip to main content. Lifestyle. 24/7 help. For premium support please call: ...
Etymology (/ ˌ ɛ t ɪ ˈ m ɒ l ə dʒ i / ET-im-OL-ə-jee [1]) is the study of the origin and evolution of words—including their constituent units of sound and meaning—across time. [2] In the 21st century a subfield within linguistics , etymology has become a more rigorously scientific study. [ 1 ]
Stages in the origin of life range from the well-understood, such as the habitable Earth and the abiotic synthesis of simple molecules, to the largely unknown, like the derivation of the last universal common ancestor (LUCA) with its complex molecular functionalities.
In the same work, Rosten also defines the term as "that quality enshrined in a man who, having killed his mother and father, throws himself on the mercy of the court because he is an orphan". Chutzpah amounts to a total denial of personal responsibility , which renders others speechless and incredulous.
The origin of life on Earth is not well understood, but it is known to have occurred at least 3.5 billion years ago, [65] [66] [67] during the hadean or archean eons on a primordial Earth that had a substantially different environment than is found at present. [68] These life forms possessed the basic traits of self-replication and inheritable ...