The man who reads nothing at all is better educated than the man who reads nothing but newspapers.

Opportunity is missed by most people because it comes dressed in overalls and looks like work.

Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.

There is no week nor day nor hour when tyranny may not enter upon this country, if the people lose their roughness and spirit of defiance.

I may be as bad as the worst, but, thank god, I am as good as the best.

The whole theory of the universe is directed unerringly to one single individual.

Seeing, hearing, feeling, are miracles, and each part and tag of me is a miracle.

There is that indescribable freshness and unconsciousness about an illiterate person that humbles and mocks the power of the noblest expressive genius.

If you can dream it, you can do it. Always remember that this whole thing was started by a mouse.