"The recollections of the different periods of my life led me to reflect upon the point which I had reached, and I saw myself, already in my declining years, a prey to painful evils, and believed that I was approaching the end of my career, without having enjoyed in its fulness scarcely one single pleasure of those for which my heart yearned, without having given scope to the lively feelings which I felt it had in reserve, without having tasted or even sipped that intoxicating pleasure which I felt was in my soul in all its force, and which, for want of an object, always found itself kept in check, and unable to give itself vent in any other way but through my sighs. How came it to pass that I, a man of naturally expansive soul, for whom to live was to love, had never yet been able to find a friend entirely devoted to myself, a true friend – I, who felt admirably adapted to be one myself? How came it to pass that, with feelings so easily set on ire, with a heart full of affection, I had never once been inflamed with the love of a definite object? Consumed by the desire of loving, without ever having been able to satisfy it completely, I saw myself approaching the portals of old age, and dying without having lived."
January 1, 1970
https://en.wikiquote.org/wiki/Confessions_(Rousseau)