Dracula by Bram Stoker

19 August. Strange and sudden change in Renfield last night. About eight o'clock he began to get excited and sniff about as a dog does when setting. The attendant was struck by his manner, and knowing my interest in him, encouraged him to talk. He is usually respectful to the attendant and at times servile; but to-night, the man tells me, he was quite haughty. Would not condescend to talk with him at all. All he would say was: --"I don't want to talk to you: you don't count now; the Master is at hand."

The attendant thinks it is some sudden form of religious mania which has seized him. If so, we must look out for squalls, for a strong man with homicidal and religious mania at once might be dangerous. The combination is a dreadful one. At nine o'clock I visited him myself. His attitude to me was the same as that to the attendant; in his sublime self-feeling the difference between myself and attendant seemed to him as nothing. It looks like religious mania, and he will soon think that he himself is God. These infinitesimal distinctions between man and man are too paltry for an Omnipotent Being. How these madmen give themselves away! The real God taketh heed lest a sparrow fall; but the God created from human vanity sees no difference between an eagle and a sparrow. Oh, if men only knew!