'I think' is an act of will which puts man at the centre of everything. With a Limited Edition, Omas underlines the fact that writing too is a fundamental aspect of the growth of civilization: it is with writing that thoughts take shape. The parts of this pen made of precious jewels represent the voyage which Darwin made across the oceans aboard the British brig HMS Beagle, which saw him make his decisive scientific discoveries in the Galapagos Islands. The route taken by HMS Beagle is faithfully reproduced on the reservoir of the Limited Edition. The fine engraving is made using the “island” technique, performed with a hand-controlled pantograph, which allows extremely thin and accurate marks to be drawn, tracing the continents and a naval map dating from 1800. Looking at the pen through a magnifying glass, you can read text and see details which cannot be seen by the naked eye. It is painstaking work, which suggests how attention and research can discover things which are not apparently visible. On the top of the cap a drawing of a mockingbird has been engraved: it was in fact the different varieties of this creature found in the different islands which suggested that the mutations had come about from a single original specimen. The same thing happened in the analysis of the other species whose footprints are reproduced on the clip: turtle, marine iguana, land iguana, lava lizard, flamingo, gannet and gecko. On the ring of the cap is a design of the structure of 'DNA', the nucleic acid which contains genetic information, to represent the future after Darwin.