She boileth the honey with Spring-water, as I do, till it be CLEER scumed; then to every Gallon of Honey, put in a pound or two of good Raisins of the Sun; boil them well, and till the Liquor bear an Egge.
"The Closet of Sir Kenelm Digby Knight Opened"
Kenelm Digby
And to CLEER this point the better, I judge them able to stand of themselves, who are of power either for their multitudes of men, or quantity of money, to bring into the field a compleat armie, and joyn battel with whoever comes to assail them: and so I think those alwaies to stand in need of others help, who are not able to appear in the field against the enemy, but are forc'd to retire within their walls and guard them.
"Machiavelli, Volume I The Art of War; and The Prince"
Niccolò Machiavelli
For Lead dissolv'd in Spirit of Vinegar or Aqua-fortis gives a Solution CLEER enough, and if the Menstruum be abstracted appears either Diaphanous or White.
"Experiments and Considerations Touching Colours (1664)"
Robert Boyle