From a day long past:
“It was at the period of my mental progress which I have now reached that I formed the friendship which has been the honour and chief blessing of my existence, as well as the source of a great part of all that I have attempted to do, or hope to effect hereafter, for human improvement…What I owe, even intellectually, to her, is in its detail, almost infinite…I have often received praise, which in my own right I only partially deserve, for the greater practicality which is supposed to be found in my writings, compared with those of most thinkers who have been equally addicted to large generalizations. The writings in which this quality has been observed, were not the work of one mind, but of the fusion of two.” -Philosopher John Stuart Mill on his “most valuable friend,” wife Harriet Parker
Hat tip to The Art of Manliness