Take time for all things: great haste makes great waste.
Learn of the skillful; he that teaches himself, has a fool for his master.
Think of these things, whence you came, where you are going, and to whom you must account.
What good shall I do this day?
All would live long, but none would be old.
We may perhaps learn to deprive large masses of their gravity and give them absolute levity, for the sake of easy transport.