March on, symbolic host! with step sublime, Up to the flaming bounds of Space and Time! There pause, until by Dickenson depicted, In two dimensions, we the form may trace Of him whose soul, too large for vulgar space, In n dimensions flourished unrestricted.

In: Lewis Campbell and William Garnett, The Life of James Clerk Maxwell with Selections from his Correspondence and Occasional Writings, To the Committee of the Cayley Portrait Fund (p. 637)