For, as Proclus saith, Libro de Sacrificio et Magia, it is because the
presence of the virtue of the sun, which is the organ and promptuary of all
terrestrial and sidereal light, doth more symbolize and agree with a white
cock, as well in regard of that colour, as of his property and specifical
quality, than with a lion. He saith, furthermore, that devils have been
often seen in the shape of lions, which at the sight of a white cock have
presently vanished. This is the cause why Galli or Gallices (so are the
Frenchmen called, because they are naturally white as milk, which the
Greeks call Gala,) do willingly wear in their caps white feathers, for by
nature they are of a candid disposition, merry, kind, gracious, and
well-beloved, and for their cognizance and arms have the whitest flower
of any, the Flower de luce or Lily.

If you demand how, by white, nature would have us understand joy and
gladness, I answer, that the analogy and uniformity is thus. For, as the
white doth outwardly disperse and scatter the rays of the sight, whereby
the optic spirits are manifestly dissolved, according to the opinion of
Aristotle in his problems and perspective treatises; as you may likewise
perceive by experience, when you pass over mountains covered with snow, how
you will complain that you cannot see well; as Xenophon writes to have
happened to his men, and as Galen very largely declareth, lib. 10, de usu
partium: just so the heart with excessive joy is inwardly dilated, and
suffereth a manifest resolution of the vital spirits, which may go so far
on that it may thereby be deprived of its nourishment, and by consequence
of life itself, by this perichary or extremity of gladness, as Galen saith,
lib. 12, method, lib. 5, de locis affectis, and lib. 2, de symptomatum
causis. And as it hath come to pass in former times, witness Marcus
Tullius, lib. 1, Quaest. Tuscul., Verrius, Aristotle, Titus Livius, in his
relation of the battle of Cannae, Plinius, lib. 7, cap. 32 and 34, A.
Gellius, lib. 3, c. 15, and many other writers,--to Diagoras the Rhodian,