[Footnote 283: Hymn, ode, and epic. Define each of these three kinds
of poetry.]

[Footnote 284: Apollo. In classic mythology, the sun god who presided
over music, poetry, and art; he was the guardian and leader of the
Muses.]

[Footnote 285: Muses. In classic mythology, the nine sisters who
presided over music, poetry, art, and science. They were Clio the muse
of history, Euterpe of music, especially the flute, Thalia of comedy,
Melpomene of tragedy, Terpsichore of dancing, Erato of erotic poetry,
mistress of the lyre, Polyhymnia of sacred poetry, Urania of
astronomy, Calliope of eloquence and epic poetry.]

[Footnote 286: Genius. According to an old belief, a spirit that
watched over a person to control, guide and aid him.]

[Footnote 287: "Crush the sweet poison," etc. This is a quotation from
_Comus_, a poem by Milton.]

[Footnote 288: Systole and diastole. (See note 98.)]

[Footnote 289: Friendship, like the immortality, etc. See on what a
high plane Emerson places this relation of friendship. In 1840 he
wrote in a letter: "I am a worshiper of friendship, and cannot find
any other good equal to it. As soon as any man pronounces the words
which approve him fit for that great office, I make no haste; he is
holy; let me be holy also; our relations are eternal; why should we
count days and weeks?"]