This observation on the nature of mathematics gives us a clue to the first and highest condition of its possibility, which is, that some non-sensuous visualisation (called pure intuition, or reine Anschauung) must form its basis, in which all its concepts can be exhibited or constructed, in concreto and yet a priori.
alegia beharrezkoa dela Matematikak nolabaiteko intuizio hutsen bat oinarrian edukitzea, bertan berak bere kontzeptu guztiak in concreto eta hala ere a priori aurkeztu, edo esaten den bezala, eraiki ahal izan ditzan.