Results? Why, man, I have gotten lots of results! If I find 10,000 ways something won't work, I haven't failed. I am not discouraged, because every wrong attempt discarded is often a step forward.

Sleep is like a drug. Take too much at a time and it makes you dopey. You lose time and opportunities.

Barring serious accidents, if you are not preoccupied with worry and you work hard, you can look forward to a reasonably lengthy existence.... Its not the hard work that kills, its the worrying that kills.

I find out what the world needs. Then I go ahead and try to invent it

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

I have not failed. I've just found 10,000 foundations and individual donors whose priorities don't align with my organization's.

Nature is what we know. We do not know the gods of religions. And nature is not kind, or merciful, or loving. If God made me - the fabled God of the three qualities of which I spoke: mercy, kindness, love - He also made the fish I catch and eat. And where do His mercy, kindness, and love for that fish come in? No; nature made us - nature did it all - not the gods of the religions.