resemble the past

Hume treats humans as clever animals whose beliefs about most things are based on “custom,” in the form of a propensity to expect the future to resemble the past—a propensity, he argued, that is essential for the conduct of life, but cannot be provided with any sort of independent justification. - Who was David Hume
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The book [Treatise - vs] did not dispute the fact that there was a difference between right and wrong; rather it maintained that this difference reflects humanity’s “internal Tastes and Sentiments”—which, according to Hume’s pamphlet, ought not to be received as a shocking idea.