"I doubt whether Bilders' great talent ever reached its full development. He stood alone, absolutely alone. The phlegmatic painters who were content slavishly to copy nature, the eminent painters of fields and cattle had little or nothing in common with him and the studies which were sold at the auction held in the studio of the late Mrs. Bilders-van Bosse, his second wife, prove that he felt a longing for more colour, that, directly or indirectly, he had experienced the influence of a Delacroix."