Be not solitary, be not idle
[T]hou canst not think worse of me than I do of myself.
We can make mayors and officers every year, but not scholars.
They [i.e. ambitious men] may not cease, but as a dog in a wheel, a bird in a cage, or a squirrel in a chain, so Budaeus compares them; they climb and climb still, with much labour, but never make an end, never at the top.
What a glut of books! Who can read them?
No cord or cable can draw so forcibly, or bind so fast, as love can do with a single thread.