Melancholy can be overcome only by melancholy.
We can make mayors and officers every year, but not scholars.
What a glut of books! Who can read them?
The men who succeed are the efficient few. They are the few who have the ambition and will power to develop themselves.
[T]hou canst not think worse of me than I do of myself.
Let thy fortune be what it will, 'tis thy mind alone that makes thee poor or rich, miserable or happy.