The world owes nothing to any man, but every man owes something to the world.

I make more mistakes than anyone else I know, and sooner or later, I patent most of them.

I was at the foot of my class.

Any large extension of the Government into business affairs - no matter what the pretense and no matter how the the extension is labeled - will be bound to promote waste and put a curb on our prosperity and progress.

The trouble with most people is that they quit before they start.

I cannot believe in the immortality of the soul. No, all this talk of an existence for us, as individuals, beyond the grave is wrong. It is born of our tenacity of life - our desire to go on living - our dread of coming to an end.

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.