Gerharda Hermina Marius, Dutch Art in the Nineteenth Century… (1908)
“ Their names are Van Looy, Van der Valk, Voerman, Haverman, Derkinderen, Toorop, Witsen, Karsen and Veth. If we wish to sum up the endeavours of these artists in a formula, it may be expressed as a mistrust of any sort of impressionism, of any passion or painter's enthusiasm, a mistrust sprung from a reaction against the inane and feeble imitators of the Hague school, against the impressionism which Gerard Bilders went so far as to think that he could see in the imitations of the Barbizon school, and, consequently, as a conscious striving after form, pronounced line and purity of colour. ”
