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 ElderThe lust of avarice as so totally seized upon mankind that their wealth seems rather to possess them than they possess their wealth.
Pliny the ElderThe brain is the highest of the organs in position, and it is protected by the vault of the head; it has no flesh or blood or refuse. It is the citadel of sense-perception.
Pliny the ElderCompassion and shame come over one who considers how precarious is the origin of the proudest of living beings: often the smell of a lately extinguished lamp is enough to cause a miscarriage. And to think that from such a frail beginning a tyrant or butcher may be born! You who trust in your physical strength, who embrace the gifts of fortune and consider yourself not their ward but their son, you who have a domineering spirit, you who consider yourself a god as soon as success swells your breast, think how little could have destroyed you!
Pliny the Elder