The freethinking of one age is the common sense of the next.
Play: Work that you enjoy doing for nothing.
Ask not what you can do for your country. Ask what's for lunch.
One's destination is never a place but rather a new way of looking at things.
When you make a mistake, don't look back at it long. Take the reason of the thing into your mind and then look forward. Mistakes are lessons of wisdom. The past cannot be changed. The future is yet in your power.
In the absences of a decent time machine, fiction remains the most sturdy vehicle for visiting other eras.
Whenever you have an efficient government you have a dictatorship.