“Love one another.”
Last words, spoken to his daughter-in-law (10 October 1872), quoted by Frederick William Seward in a postscript (chapter LXXIII) to The Autobiography of William H. Seward (1877).
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William H. Seward 19
American lawyer and politician 1801–1872Related quotes

Jesus in John 13:34-35 NRSV
Gospel of John

Twitter https://twitter.com/marwilliamson (26 Nov 2019)
Williamson's quotes in social media

“It is by loving and not by being loved that one can come nearest to the soul of another.”
Phantastes (1858)
Variant: It is by loving and not by being loved, that one can come nearest to the soul of another.
Context: I knew now, that it is by loving, and not by being loved, that one can come nearest the soul of another; yea, that, where two love, it is the loving of each other, and not the being loved by each other, that originates and perfects and assures their blessedness. I knew that love gives to him that loveth, power over any soul beloved, even if that soul know him not, bringing him inwardly close to that spirit; a power that cannot be but for good; for in proportion as selfishness intrudes, the love ceases, and the power which springs therefrom dies. Yet all love will, one day, meet with its return. All true love will, one day, behold its own image in the eyes of the beloved, and be humbly glad. This is possible in the realms of lofty Death.
“…love is in the eyes, and one woman knows when another woman is in love.”
Source: Drenai series, The King Beyond the Gate, Ch. 22

“…even Christians loved one another at first starting.”
Source: The Cloister and the Hearth (1861), CHAPTER I
“Love one another and you will be happy. It’s as simple and difficult as that.”
The Complete Neurotic's Notebook (1981), Unclassified

“Love is the delusion that one woman differs from another.”
Sententiæ
1940s–present, A Mencken Chrestomathy (1949)