william molyneaux

Small and Far Away: Thomas Kingsmill Abbott

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Landscape by George Barret Wikimedia, Public Domain
Landscape by George Barret
Wikimedia, Public Domain

Dublin born Thomas Kingsmill Abbott (26 March 1829 – 18 December 1913) is probably best known for his translations of Kant’s ethical works published in 1873 which remained the standard English texts into the 1940s (Duddy, 2004). He had a wide range of scholarly interests, being professor various of Moral Philosophy, Greek and Hebrew in Trinity College Dublin. However his greatest philosophical contribution was made in his early career, where he disputed the theory of vision outlined by (fellow Trinity man) George Berkeley.

The roots of Berkeley’s theory are in Locke. Just before he introduces (William) Molyneaux’s Problem, in his Essay on Human Understanding (IX, 8) Locke states that “When we set before our eyes a round globe of any uniform colour […] it is certain that the idea thereby imprinted on our mind is of a flat circle”. The roundness we think we see, says Locke, is the effect of experience, which differentiates what we see: “…only a plane variously coloured, as is evident in painting.” He does not, however, claim we cannot tell that the sphere is at a distance.

William Molyneaux does claim this, however, in his Dioptrica Nova (1692, 113):

Distance of itself is not to be perceived. For it is a line (or a length) presented to our eye with its end toward us which must therefore be only a point, and that is invisible.

Berkeley expands these ideas in A Essay towards a New Theory of Vision (1709/1732), referenced previously in relation to the Moon Illusion. Berkeley agrees with Molyneaux that distance cannot be seen (II):

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Incendiary: John Toland and the birth of the Irish Enlightenment

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A book burning in London, 1643. (click for source)
A book burning in London, 1643. (Image  is figure 8 in “Incendiary texts”, referenced and linked below)

On 18th (some say 11th) September, 1697 the book “Christianity Not Mysterious” was burned in front of the Irish Parliament Buildings. This had been ordered by the Parliament who declared some days earlier that the heretical book “be publickly burnt by the hands of the common hangman” and the author “be taken into the custody of the Serjeant at Arms and…prosecuted”. Such burning of books by the hangman had been done in England since 1634 (ref), though letters from Molyneaux to Locke suggest it had not happened in Ireland before.

The book had already caused controversy. It was denounced when it was first published in 1696, the first edition anonymously and the second under Toland’s name. The book argues that “[T]here is nothing in the Gospel contrary to Reason, nor above it; and … no Christian Doctrine can be properly called a Mystery.” In other words, nothing in the Gospel can conflict with reason, the Gospel cannot transcend reason (so apparent conflicts with reason cannot be explained away as a mystery) and that no doctrine can at once be Christian and mysterious. The creation of mysteries within Christianity he attributed to innovations of competing sects.

This theory of the relationship between religion and reason went further than other supporters of reason such as Locke had dared. It was especially contentious in Ireland, since it undermined the position of the established Anglican Church over other churches. Archbishop Narcissus Marsh (of the Library) requested the Provost of Trinity College, Dr. Peter Browne, to write an answer to Toland’s book. Browne did so in his 1797 A Letter in answer to a book entitled Christianity not mysterious, condemning Toland as ‘an inveterate enemy of revealed religion’. Browne was later made the Bishop of Cork, due to Marsh’s influence, leading Toland to boast he had ‘made Browne a bishop’.

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John Locke in Ireland

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In 1692 John Locke’s Essay concerning Human Understanding was put on the curriculum of Trinity College Dublin by the provost St George Ashe. This was the first university to do so, unsurprising given the book was only published two years before.

The book was added on the recommendation of William Molyneux, founder of the Dublin Philosophical Society and first translator of Descartes’Meditations into English. In 1692 Molyneux made a flattering reference to Locke in the dedication of his own book, the Dioptrica Nova. He sent a copy to Locke, sparking a correspondence that only ended when Molyneux died. Molyneux was immortalised on a later edition of Locke’s Essay as the creator of Molyneux’s Problem.

When, in 1695, John Toland published his Christianity Not Mysterious, which applied Lockean ideas to religion, Locke was by then known well enough for the arguments refuting Toland to employ the same Lockean ideas. The Irish Enlightenment and Counter-Enlightenment, described by David Berman, produced new theological positions, such as Theological Representationalism, and some important philosophers. “Without Locke’sEssay“, says Berman, “there would hardly have been a Berkeley, Hutcheson or Burke.” Much of Irish philosophy in this “Golden Age” rests on Lockean foundations, and Berkeley’s philosophy is rooted in disputes between different positions based on Locke.

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