A physical quantity is a physical property of a phenomenon, body, or substance, that can be quantified by measurement.
Read more about Physical Quantity: Definition of A Physical Quantity, Extensive and Intensive Quantities, Symbols, Nomenclature, Units and Dimensions, Base Quantities, Physical Quantities As coordinates Over Spaces of Physical qualities (philosophy)
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“... life is moral responsibility. Life is several other things, we do not deny. It is beauty, it is joy, it is tragedy, it is comedy, it is psychical and physical pleasure, it is the interplay of a thousand rude or delicate motions and emotions, it is the grimmest and the merriest motley of phantasmagoria that could appeal to the gravest or the maddest brush ever put to palette; but it is steadily and sturdily and always moral responsibility.”
—Elizabeth Stuart Phelps (1844–1911)
“Among the virtues and vices that make up the British character, we have one vice, at least, that Americans ought to view with sympathy. For they appear to be the only people who share it with us. I mean our worship of the antique. I do not refer to beauty or even historical association. I refer to age, to a quantity of years.”
—William Golding (b. 1911)