Genius? Nothing! Sticking to it is the genius! Any other bright-minded fellow can accomplish just as much if he will stick like hell and remember nothing that's any good works by itself. You've got to make the damn thing work!...I failed my way to success.

Nobody knows whether our personalities pass on to another existence or sphere, but if we can evolve an instrument so delicate to be manipulated by our personality as it survives in the next life such an instrument ought to record something.

The first requisite of success is the ability to apply your physical and mental energies to one problem without growing weary.

It is the best book ever written on the subject. There is nothing like it!

I have always consistently opposed high-tension and alternating systems of electric lighting...not only on account of danger, but because of their general unreliability and unsuitability for any general system of distribution.

There cannot be overproduction of anything which men and women want. And their wants are unlimited, except by the size of their stomachs.

I have not failed. I've just found 10,000 ways that won't work.