Religion is all bunk.

The first requisite for success is to develop the ability to focus and apply your mental and physical energies to the problem at hand - without growing weary. Because such thinking is often difficult, there seems to be no limit to which some people will go to avoid the effort and labor that is associated with it.

It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

To get a great idea, come up with lots of them.

To have a great idea, have a lot of them.

If I had not had so much ambition and not tried to do so many things, I probably would have been happier, but less useful.

It has been just so in all my inventions. The first step is an intuition-and comes with a burst, then difficulties arise. This thing that gives out and then that-"Bugs"as such little faults and difficulties are called show themselves and months of anxious watching, study and labor are requisite before commercial success-or failure-is certainly reached.