Beauty stands in the admiration of weak minds led captive

                            For Beauty stands
  In the admiration only of weak minds
  Led captive;

- John Milton, Paradise Regained, Book II, Lines 220-222
(Satan to his followers, trying to think of ways to tempt Christ and stating that lust won't work, essentially)

To be dispraised by the people is praise

  For what is glory but the blaze of fame,
  The people's praise, if always praise unmixed?
  And what the people but a herd confused,
  A miscellaneous rabble, who extol
  Things vulgar, and, well weighed, scarce worth the praise?
  They praise and they admire they know not what,
  And know not whom, but as one leads the other;
  And what delight to be by such extolled,
  To live upon their tongues, and be their talk?
  Of whom to be dispraised were no small praise—
  His lot who dares be singularly good.
  The intelligent among them and the wise
  Are few, and glory scarce of few is raised.

- John Milton, Paradise Regained, Book III, Lines 47-59
(Christ replying to Satan's temptations)

To obey is best; death the gate of life

Henceforth I learn, that to obey is best,
And love with fear the only God; to walk
As in his presence; ever to observe
His providence; and on him sole depend,
Merciful over all his works, with good
Still overcoming evil, and by small
Accomplishing great things, by things deemed weak
Subverting worldly strong, and worldly wise
By simply meek: that suffering for truth's sake
Is fortitude to highest victory,
And, to the faithful, death the gate of life;
Taught this by his example, whom I now
Acknowledge my Redeemer ever blest.

- John Milton, Paradise Lost, Book XII, Lines 561-573

      Revenge, at first though sweet,
Bitter ere long back on itself recoils

- John Milton, Paradise Lost, Book IX, Lines 171-172

But what will not ambition and revenge

Descend to?

- John Milton, Paradise Lost, Book IX, Lines 168-169

From evil He creates good

"his evil
Thou usest, and from thence createst more good."

- John Milton, Paradise Lost, Book VII, Lines 615-616
(Appear to be talking to Jehovah, about those, like Satan, who try to pervert His ways by doing evil)

Spirits equal in their creation

"Two days, as we compute the days of Heaven,
Since Michael and his Powers went forth to tame
These disobedient: Sore hath been their fight,
As likeliest was, when two such foes met armed;
For to themselves I left them; and thou knowest,
Equal in their creation they were formed,
Save what sin hath impaired"

- John Milton, Paradise Lost, Book VI, Lines 685-691
(God talking to Christ about the equality of spirits. Emphasis added - that's the part I like)