It has always appeared to me that we sacrifice many of the advantages and more of the pleasures of studying any science by omitting all reference to the history of its progress: I have therefore occasionally introduced historical notices of those problems which are interesting either from the nature of the questions involved, or from their bearing on the history of the Calculus. ...[T]hese digressions may serve to relieve the dryness of a mere collection of Examples.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "It has always appeared to me that we sacrifice many of the advantages and more of the pleasures of studying any science by omitting all reference to the history of its progress: I have therefore occasionally introduced historical notices of those problems which are interesting either from the nature of the questions involved, or from their bearing on the history of the Calculus. ...[T]hese digressions may serve to relieve the dryness of a mere collection of Examples." in the context of "p. vi, as cited in: Patricia R. Allaire and Robert E. Bradley. "Symbolical algebra as a foundation for calculus: DF Gregory's contribution." Historia Mathematica 29.4 (2002): p. 409." to mean that wisdom is timeless.