I've always found the second book in a series is the hardest to write.

Take time to deliberate, but when the time for action comes, stop thinking and go in.

Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

Earning happiness means doing good and working, not speculating and being lazy. Laziness may look inviting, but only work gives you true satisfaction.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal.

It is hard to fail, but it is worse never to have tried to succeed.

Percentages are why I am rich.

The greatest leader is not necessarily the one who does the greatest things. He is the one that gets the people to do the greatest things.

You can observe a lot just by watching.

One must be sane to think clearly, but one can think deeply and be quite insane.

In every job that must be done, there is an element of fun. You find the fun and - SNAP - the job's a game!

Workers of the world unite; you have nothing to lose but your chains.

Moving from chair to chair, from coffee machine to coffee machine is the limit of my action in most films. But I enjoy being cast in them because I love watching them.

Success is going from failure to failure without loss of enthusiasm.

You never achieve success unless you like what you are doing.

Inspiration exists, but it has to find you working.

Good actions give strength to ourselves and inspire good actions in others.

Thought, backed by strong desire, has a tendency to transmute itself into its physical equivalent.

To invent, you need a good imagination and a pile of junk.

Change yourself and your work will seem different.

But Marge, what if we chose the wrong religion? Each week we just make God madder and madder.