Mind from its object differs most in this: Evil from good; misery from happiness; The baser from the nobler; the impure And frail, from what is clear… - Percy Bysshe Shelley

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Mind from its object differs most in this: Evil from good; misery from happiness; The baser from the nobler; the impure And frail, from what is clear and must endure. If you divide suffering and dross, you may Diminish till it is consumed away; If you divide pleasure and love and thought, Each part exceeds the whole; and we know not How much, while any yet remains unshared, Of pleasure may be gained, of sorrow spared: This truth is that deep well, whence sages draw The unenvied light of hope; the eternal law By which those live, to whom this world of life Is as a garden ravaged, and whose strife Tills for the promise of a later birth The wilderness of this Elysian earth.