"See how all things link together," remarked Phellion, "and how, from the summits of society, luxury infiltrates itself, sooner or later, through the lower classes, leading to the ruin of empires."
"The Lesser Bourgeoisie"
Honore de Balzac
And the essence infiltrates and poisons the whole atmosphere in which the would-be-free think and act.
"The Glands Regulating Personality"
Louis Berman, M.D.
The blood which infiltrates the conjunctiva passes from behind forwards, appearing first at the outer angle of the eye and spreading like a fan towards the cornea.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition."
Alexander Miles Alexis Thomson