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The flow of sand in an hourglass can be used to measure the passage of time. It also concretely represents the present as being between the past and t
The flow of sand in an hourglass can be used to measure the passage of time. It also concretely represents the present as being between the past and the future.
Horizontal sundial in Canberra
Horizontal sundial in Canberra
24-hour clock face in Florence
24-hour clock face in Florence
A contemporary quartz watch, 2007
A contemporary quartz watch, 2007
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One of the topics covered by theories of the nature of existence concerns the ontological status of fictional objects like Pegasus.
One of the topics covered by theories of the nature of existence concerns the ontological status of fictional objects like Pegasus.
Bertrand Russell proposed his theory of descriptions to dissolve paradoxes surrounding negative existential statements.
Bertrand Russell proposed his theory of descriptions to dissolve paradoxes surrounding negative existential statements.
According to Alexius Meinong, there are some entities that do not exist.
According to Alexius Meinong, there are some entities that do not exist.
Plato and his student Aristotle disagreed on whether form and matter depend on one another for their existence.
Plato and his student Aristotle disagreed on whether form and matter depend on one another for their existence.