And, to prevent mistakes, I must advertize you, that I now mean by elements, as those chymists that speak plainest do by their principles, certain primitive or simple, or perfectly unmingled bodies; which not being made of any other bodies, or of one another, are the ingredients of which all those called perfectly mixt bodies are immediately compounded, and into which they are ultimately resolved: now whether there be any such body to be constantly met with in all, and each, of those that are said to be elemented bodies, is the thing I now question.
Robert BoyleAs the sun is best seen at his rising and setting, so men's native dispositions are clearest seen when they are children, and when they are dying.
Robert BoyleFemale beauties are as fickle in their faces as in their minds; though casualties should spare them, age brings in a necessity of decay.
Robert Boyle