However, Empedocles of Acragas (c. 495 – c. 435 BC) selected four archai for his four roots: air, fire, water and earth.
In the Timaeus, his major cosmological dialogue, the Platonic solid associated with water is the icosahedron which is formed from twenty equilateral triangles.
[1] Plato's student Aristotle (384–322 BC) developed a different explanation for the elements based on pairs of qualities.
According to Aristotle, water is both cold and wet and occupies a place between air and earth among the elemental spheres.
Other things associated with water and phlegm in ancient and medieval medicine included the season of Winter, since it increased the qualities of cold and moisture, the phlegmatic temperament, the feminine and the western point of the compass.
The element water is also associated with Chandra or the moon and Shukra, who represent feelings, intuition and imagination.