Walked my walk today under a grey sky. Applied Plato’s wisdom – and had it carried away by the surf.  

In Plato’s philosophy,  a circle has:
–  a name  i.e. circle 
–  an account  i.e.  set of points in a plane that are a given distance from a given point     

    (x – a)²  + (y – b)² = r²  where (a,b) is the middle point, (x,y) is a point on the circle, and r is the circle’s radius. 

–  an image i.e. sense perception of the circle (sight, taste, smell, touch, hearing, balance, proprioception)
from these three stem
– the knowledge i.e. the idea of a circle, the circle in one’s mind 
having all four, a flash of inspiration provides :
– the Fifth. the Essence

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