"The rose colours of madder have justly been considered as supplying a desideratum, and as the most valuable acquisiti…"

"Green...contrasts more agreeably with all colours than any other individual colour. It has accordingly been adopted w…"

"The general powers of green, as a colour, associate it with the ideas of vigour and freshness; and it is hence symbol…"

"As purple, when inclining toward redness, is a regal and pompous colour, it has been used in mythological representat…"

"Brown...is the rather indefinite appellation of a very extensive class of colours of warm or tawny hues....The term b…"

"Brown is a sober and sedate colour, grave and solemn, but not dismal, and contributes to the expression of strength, …"

"Gray denotes a class of cool cinereous colours...The grays, like the other semi-neutrals, are sober, modest colours, …"

"Perhaps we would have forestalled [human] extinction if Louis Pasteur had abandoned his studies on the germ theory. W…"

"Humans and other bipedal apes have pursued our distinctively destructive path for a sliver of the total biotime in th…"

"Humans are not the only organisms to have affected the live-ability of Earth. Microbes and plants changed the chemist…"