Regular Abstract

Famous quotes containing the words regular and/or abstract:

“The solid and well-defined fir-tops, like sharp and regular spearheads, black against the sky, gave a peculiar, dark, and sombre look to the forest.”
—Henry David Thoreau (1817–1862)

“All abstract sciences are nothing but the study of relations between signs.”
—Denis Diderot (1713–1784)