James Boswell on Love and Friendship
Life of Johnson (Oxford University Press: 1998), p. 624.
I thought admiration one of the most agreeable of all our feelings; and I regretted that I had lost much of my disposition to admire, which people generally do as they advance in life. [Samuel Johnson replied] "Sir, as a man advances in life, he gets what is better than admiration — judgment, to estimate things at their true value." I still insisted that admiration was more pleasing than judgment, as love is more pleasing than friendship. The feeling of friendship is like that of being comfortably filled with roast beef; love, like being enlivened with champagne.
Note: This bolded line is usually attributed to Samuel Johnson, but appears to be said in contraposition to him. Emphasis not in original.