Nature
In its pure form, as manufactured for toothpaste, it is an odourless, tasteless, white, gelatinous substance, which is chemically inert.
Read more about this topic: Hydrated Silica
Famous quotes containing the word nature:
“The universe is not rough-hewn, but perfect in its details. Nature will bear the closest inspection; she invites us to lay our eye level with the smallest leaf, and take an insect view of its plain. She has no interstices; every part is full of life.”
—Henry David Thoreau (1817–1862)
“A painter told me that nobody could draw a tree without in some sort becoming a tree; or draw a child by studying the outlines of its forms merely,—but by watching for a time his motions and plays, the painter enters into his nature and can then draw him at will in every attitude.”
—Ralph Waldo Emerson (1803–1882)
“So work the honey-bees,
Creatures that by a rule in nature teach
The act of order to a peopled kingdom.”
—William Shakespeare (1564–1616)