... imperfections, and thus to satisfy ourselves that threads made of quartz are not things standing apart from all other materials, except in the sense that the limits within which they may be twisted without deviating in their behaviour from the law of strict proportionality by more than some unassigned small quantity, are ... — On Laboratory Arts • Richard Threlfall
... and give, as it were, a substratum of permanence, of identity, and therefore of reality, to the shadowy flux of Time. It is Eternity revealing itself in the phaenomena of Time: and the perception and acknowledgment of the proportionality and appropriateness of the Present to the Past, prove to the afflicted Soul, that it has not yet been deprived of the sight of God, that it can still recognise the effective presence of a Father, though through a darkened glass and a turbid ... — Biographia Literaria • Samuel Taylor Coleridge