Enos ~

* "All work and no play makes jack a dull boy."

- I think it means we must take a break for a time from working, we must have time off from work if we not have     a break from work we will become bored

* Ninety percent of inspiration is perspiration."

- It means no matter how clever we are, if we do not do anything, it was all in vain because hard work conquer    cleverness.

* "Work expand to fill the time available." (C. Northcote Parkinson)

- I think this is one of advice, if we have an available time or a free time, it is better if we use the time to do        something that it will make a profit, like working to make something.

* "Laziness travels so slowly that poverty soon overtakes him." (Benjamin Franklin)

- It means if we are lazy, we will get a problem that it will make our life become hard, like poverty problem.

  If we want to avoid it, we must not be lazy, do something, work hard to chase our success.

* "It is neither wealth or splendor, but tranquility and occupation, which give happiness." (Thomas Jefferson)

- It means to be happy not depend on luxury, wealth, or splendor. Happines can be generated by the 

  comfortable and tranquility, it can be generated from the simple thing.