Date: 1665

"But as though grains of Sand and Ashes be a part, but of a despicable smallness, and very easie, and liable to be scatter'd, and blown away; yet the skilful Artificer, by a vehement Fire, brings Numbers of these to afford him that noble substance, Glass, by whose help we may both see our selves,...

— Boyle, Robert (1627-1691)

Date: 1790

"The worst of these politics of revolution is this; they temper and harden the breast, in order to prepare it for the desperate strokes which are sometimes used in extreme occasions."

— Burke, Edmund (1729-1797)

Date: 1798

"In making observations upon subjects which are new to us, we must be content to use our memory unassisted at first by our reason; we must treasure up the ore and rubbish together, because we cannot immediately distinguish them from each other."

— Edgeworth, Maria