Love (n.) holds more steadily when others love the same thing — so the lover recruits.
Love (n.) can be excessive, since it is often just a local thrill with an outside cause attached.
Love (n.) caused by anything but freedom of soul — bodily beauty, say — readily turns into hate, unless, worse, it is a kind of madness.
Love (n.) is joy hitched to the thought of an outside cause — unhitch the joy from that thought and the love itself is destroyed.
Love (n.) for something eternal is the only love we can truly come into possession of, free of the faults of ordinary love, and able to grow until it fills the mind.
Love (n.) dies with the body — all except intellectual love, which alone is eternal.
Love (n.) is joy accompanied by the idea of an exterior cause.