Full Idea
The necks of doves appear different in hue according to the differences in the angle of inclination.
Gist of Idea
The necks of doves appear different in colour depending on the angle of viewing
Source
Sextus Empiricus (Outlines of Pyrrhonism [c.180], I.120)
Book Reference
Sextus Empiricus: 'Outlines of Pyrrhonism', ed/tr. Bury,R.G. [Prometheus 1990], p.51