A comparison of the passage in the first and second editions of Mr. Jowett's Introduction respectively[139] shows how largely he profited by the criticisms in the foregoing letter. His _Plato_ first appeared in 1871, and at once he began revising it. In this work Miss Nightingale gave him great help. Her Greek had now grown a little rusty,[140] but her interest in the substance of Plato was intense. She annotated Mr. Jowett's summaries and introductions very closely, and sent him voluminous suggestions for revision. "You are the best critic," he wrote, "whom I ever had." Several of Miss Nightingale's notes are preserved, in rough copy, amongst her Papers, and by means of them her hand may be traced in many a page of Mr. Jowett's revised work. In the first edition of the introduction to the _Republic_ he made some remarks on love as a motive in poetry which excited Miss Nightingale's strong disapproval. She agreed that "the illusion of the feelings commonly called love" was a motive of which too much had been made; but the poets, she thought, had as yet hardly touched the theme of true love--"two in one, and one in God"--as an incentive to heroic action. "The philosopher may be excused," Mr. Jowett had written, "if he imagines an age when poetry and sentiment have disappeared, and truth has taken the place of imagination, and the feelings of love are understood and estimated at their proper value." "Take out that mean calumny, my son," wrote Miss Nightingale; "take it out this minute; blaspheme not against Love." The offending sentence was expunged in the second edition. Mr. Jowett had gone on to "blaspheme" a little against Art, citing the Mahommedans as a case of the state of the human mind in which "all artistic representations are regarded as a false and imperfect expression either of the religious or of the philosophical ideal." Miss Nightingale objected that the Mahommedans had renounced the use of pictures and images, but not of architecture: "Mosques are the highest kind of art: the one true representation of the One God: the Glory of God in the highest: the most high of the Most High: higher than any Christian art or architecture--as you would say if you had seen the mosques of Cairo." Mr. Jowett recast his passage, and used Miss Nightingale's illustration, almost in her words.[141] "I am always stealing from you," he said. On his Introduction to the _Gorgias_, she made an interesting criticism:--