“I love mankind …, but I find to my amazement that the more I love mankind as a whole, the less I love man in particular.”

Source: The Bronze Horseman

The Inferno (1917), Ch. XIV
Context: I wanted to know the secret of life. I had seen men, groups, deeds, faces. In the twilight I had seen the tremulous eyes of beings as deep as wells. I had seen the mouth that said in a burst of glory, "I am more sensitive than others." I had seen the struggle to love and make one's self understood, the refusal of two persons in conversation to give themselves to each other, the coming together of two lovers, the lovers with an infectious smile, who are lovers in name only, who bury themselves in kisses, who press wound to wound to cure themselves, between whom there is really no attachment, and who, in spite of their ecstasy deriving light from shadow, are strangers as much as the sun and the moon are strangers. I had heard those who could find no crumb of peace except in the confession of their shameful misery, and I had seen faces pale and red-eyed from crying. I wanted to grasp it all at the same time. All the truths taken together make only one truth. I had had to wait until that day to learn this simple thing. It was this truth of truths which I needed.
Not because of my love of mankind. It is not true that we love mankind. No one ever has loved, does love, or will love mankind. It was for myself, solely for myself, that I sought to attain the full truth, which is above emotion, above peace, even above life, like a sort of death. I wanted to derive guidance from it, a faith. I wanted to use it for my own good.

An dem Armen geht mir der Mensch auf. Daher kann ich den Menschen nicht denken ohne das Mitleid mit ihm, ohne die Liebe zu ihm. Nicht das Universum, aber das sittliche Universum, das soziale Dasein der Menschen muß ich denken und lieben, wenn mein Denken Gottes: Liebe heißen darf.
Source: The Concept of Religion in the System of Philosophy (1915), p. 81 http://books.google.com/books?id=rZ9RAAAAMAAJ&pg=PA81

April 15, 1778, p. 392
Life of Samuel Johnson (1791), Vol III

On Robert De Niro
Attributed

1783, p. 519
Life of Samuel Johnson (1791), Vol IV

1960s, Where Do We Go from Here: Chaos or Community? (1967)
Context: I know that love is ultimately the only answer to mankind's problems. And I'm going to talk about it everywhere I go. I know it isn't popular to talk about it in some circles today. I'm not talking about emotional bosh when I talk about love, I'm talking about a strong, demanding love. And I have seen too much hate. I've seen too much hate on the faces of sheriffs in the South. I've seen hate on the faces of too many Klansmen and too many White Citizens Councilors in the South to want to hate myself, because every time I see it, I know that it does something to their faces and their personalities and I say to myself that hate is too great a burden to bear. I have decided to love. If you are seeking the highest good, I think you can find it through love. And the beautiful thing is that we are moving against wrong when we do it, because John was right, God is love. He who hates does not know God, but he who has love has the key that unlocks the door to the meaning of ultimate reality.