The leading distinction in magnets is the sex, male and female, and the next great difference in them is the colour. Those of Magnesia, bordering on Macedonia, are of a reddish black; those of Breotia are more red than black; and the kind that is found in Troas is black, of the female sex, and consequently destitute of attractive power.
Pliny the ElderAnd that all seas are made calme and still with oile; and therefore the Divers under the water doe spirt and sprinkle it abroad with their mouthes because it dulceth and allaieth the unpleasant nature thereof, and carrieth a light with it.
Pliny the ElderAs in our lives so also in our studies, it is most becoming and most wise, so to temper gravity with cheerfulness, that the former may not imbue our minds with melancholy, nor the latter degenerate into licentiousness.
Pliny the Elder