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Single Idea 369

[filed under theme 27. Natural Reality / E. Cosmology / 1. Cosmology ]

Full Idea

If the earth is spherical and in the middle of the heavens, it needs neither air nor force to keep it from falling. The uniformity of heaven and equilibrium of earth are sufficient support.

Gist of Idea

If the Earth is spherical and in the centre, it is kept in place by universal symmetry, not by force

Source

Plato (Phaedo [c.374 BCE], 108e)

Book Ref

Plato: 'The Last Days of Socrates', ed/tr. Tredennick,Hugh [Penguin 1969], p.171


The 25 ideas from 'Phaedo'

The ship which Theseus took to Crete is now sent to Delos crowned with flowers [Plato]
In investigation the body leads us astray, but the soul gets a clear view of the facts [Plato]
To achieve pure knowledge, we must get rid of the body and contemplate things with the soul [Plato]
War aims at the acquisition of wealth, because we are enslaved to the body [Plato]
Wisdom makes virtue and true goodness possible [Plato]
People are obviously recollecting when they react to a geometrical diagram [Plato]
If we feel the inadequacy of a resemblance, we must recollect the original [Plato]
We must have a prior knowledge of equality, if we see 'equal' things and realise they fall short of it [Plato]
It is a mistake to think that the most violent pleasure or pain is therefore the truest reality [Plato]
The greatest misfortune for a person is to develop a dislike for argument [Plato]
Whether the soul pre-exists our body depends on whether it contains the ultimate standard of reality [Plato]
One soul can't be more or less of a soul than another [Plato]
Do we think and experience with blood, air or fire, or could it be our brain? [Plato]
If you add one to one, which one becomes two, or do they both become two? [Plato]
To investigate the causes of things, study what is best for them [Plato]
Fancy being unable to distinguish a cause from its necessary background conditions! [Plato]
There is only one source for all beauty [Plato]
One and one can only become two by sharing in Twoness [Plato]
Other things are named after the Forms because they participate in them [Plato]
If Simmias is taller than Socrates, that isn't a feature that is just in Simmias [Plato]
If the Earth is spherical and in the centre, it is kept in place by universal symmetry, not by force [Plato]
Philosophy is a purification of the soul ready for the afterlife [Plato]
The Forms arise whenever we talk of something 'in itself'. [Plato]
Things like the Equal and the Beautiful, which are real, must be unchanging [Plato]
The soul on its own enters a pure, unchanging and eternal realm, and experiences wisdom [Plato]