In every science certain things must be accepted as first principles if the subject matter is to be understood; and these first postulates rest upon faith.
Nicholas of CusaWhen Eternity is considered to be the Beginning, then our speaking of the Beginning of the Begun is nothing but our speaking of the Eternity of the Eternal or our speaking of the Eternity of the Begun.
Nicholas of CusaAn external thing that is knowable [is knowable] by means of something internal that is consubstantial [with the rational soul].
Nicholas of Cusa