Love's Philosophy

A mighty pain to love it is,
And 't is a pain that pain to miss;
But of all pains, the greatest pain
It is to love, but love in vain.
-from Abraham Crowley's "Anacreon

Nothing in the world is single;
All things by a law divine
In one another's being mingle;—
Why not I with thine?
— from Percy Bysshe Shelley's "Love's Philosophy";

"What then is the nature of man...? Reason, Will, Affection. To a complete man belong the power of thought, the power of will, the power of affection.... We think for the sake of thinking; love for the sake of loving; will for the sake of willing — i.e., that we may be free."
— the German philosopher Ludwig Feuerbach