Men of various ideas and fluent conversation are commonly welcome to those whose thoughts have been long fixed upon a single point, and who find the images of other things stealing away.
 Samuel Johnson, The History of Rasselas, Prince of Abissinia (1759). copy citation

Context

“I have just left the observatory of one of the most learned astronomers in the world, who has spent forty years in unwearied attention to the motion and appearances of the celestial bodies, and has drawn out his soul in endless calculations. He admits a few friends once a month to hear his deductions and enjoy his discoveries. I was introduced as a man of knowledge worthy of his notice. Men of various ideas and fluent conversation are commonly welcome to those whose thoughts have been long fixed upon a single point, and who find the images of other things stealing away. I delighted him with my remarks. He smiled at the narrative of my travels, and was glad to forget the constellations and descend for a moment into the lower world. “On the next day of vacation I renewed my visit, and was so fortunate as to please him again.” source