Good fortune is what happens when opportunity meets with planning.

Of the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.

Being busy does not always mean real work. The object of all work is production or accomplishment and to either of these ends there must be forethought, system, planning, intelligence, and honest purpose, as well as perspiration. Seeming to do is not doing.

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

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.

The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them.

Continued innovation is the best way to beat the competition.