One can see in this principle of continuity the metaphysically strong moment of seventeenth and eighteenthcentury thought (that which enables the form of the proposition to have an effective meaning, structure to be ordered as character, and the value of things to be calculated as prices); whereas the relations between articulation and attribution, designation and derivation (that which provides a foundation for judgement on the one hand and for meaning on the other, structure and character, value and prices) define the scientifically strong moment of that thought (that which makes possible grammar, natural history, and the science of wealth).