His visit only lasted two days and the two argued about the vacuum which Descartes did not believe in. Descartes wrote, rather cruelly, in a letter to Huygens after this visit that Pascal
Kanyang bisitahin lamang lasted dalawang araw at ang dalawang argued tungkol sa vacuum na Descartes hindi naniniwala in Descartes wrote, sa halip malupit, sa isang sulat sa Huygens matapos ang pagbisita na ito na Pascal