the rules of conventionalism had no existence

Though at the time she shook her head, Marcella was presently tempted to address a letter to the artist, who responded with friendly invitation. In this way a new house was opened to her; but, simultaneously, one more illusion was destroyed. Knowing little of life, and much of literature, she pictured Miss Walworth as inhabiting a delightful Bohemian world, where the rules of conventionalism had no existence, and everything was judged by the brain-standard. Modern French biographies supplied all her ideas of studio society. She prepared herself for the first visit with a joyous tremor, wondering whether she would be deemed worthy to associate with the men and women who lived for art. The reality was a shock. In a large house at Chiswick she found a gathering of most respectable English people, chatting over the regulation tea-cup; not one of them inclined to disregard the dictates of Mrs. Grundy in dress, demeanour, or dialogue. Agatha Walworth lived with her parents and her sisters like any other irreproachable young woman. She had a nice little studio, and worked at modelling with a good deal of aptitude; but of Bohemia she knew nothing whatever, save by hearsay. Her ‘Nihilist’ was no indication of a rebellious spirit; some friend had happened to suggest that a certain female model, a Russian, would do very well for such a character, and the hint was tolerably well carried out—nothing more. Marcella returned in a mood of contemptuous disappointment. The cast she had desired to have was shortly sent to her as a gift, but she could take no pleasure in it.
Still, she saw more of the Walworths and found them not illiberal. Agatha was intelligent, and fairly well read in modern authors; no need to conceal one’s opinions in conversation with her. Marcella happened to be spending the evening with these acquaintances whilst her brother was having his chat at Staple Inn; on her return, she mentioned to Christian that she had been invited to visit the Walworths in Devonshire a few weeks hence. Well, well, I meant decency from their point of view. And there really must be such restrictions, you know. How very few people are capable of what you call sincere heterodoxy, in morals or religion! Your position is unphilosophical; indeed it is. Take the world as you find it, and make friends with kind, worthy people. You have suffered from a needless isolation. Do accept this opportunity of adding to your acquaintances!—Do, Marcella! I shall take it as a great kindness, dear girl. His sister let her head lie back against the chair, her face averted. A stranger seated in Christian’s place, regarding Marcella whilst her features were thus hidden, would have thought it probable that she was a woman of no little beauty. Her masses of tawny hair, her arms and hands, the pose and outline of her figure, certainly suggested a countenance of corresponding charm, and the ornate richness of her attire aided such an impression. This thought came to Christian as he gazed at her; his eyes, always so gentle, softened to a tender compassion. As the silence continued, he looked uneasily about him; when at length he spoke, it was as though a matter of trifling moment had occurred to him.