Think that day lost whose descending sun, views from thy hand no noble action done.
The dregs may stir themselves as they please; they fall back to the bottom by their own coarseness.
When we love, it is the heart that judges.
There are single thoughts that contain the essence of a whole volume, single sentences that have the beauties of a large work.
The aim of argument, or of discussion, should not be victory, but progress.
Whence? wither? why? how? - these questions cover all philosophy.