Melancholy can be overcome only by melancholy.
A dwarf standing on the shoulders of a giant may see farther than a giant himself.
What a glut of books! Who can read them?
[T]hou canst not think worse of me than I do of myself.
Worldly wealth is the Devil's bait; and those whose minds feed upon riches recede, in general, from real happiness, in proportion as their stores increase, as the moon, when she is fullest, is farthest from the sun.
Let thy fortune be what it will, 'tis thy mind alone that makes thee poor or rich, miserable or happy.