Focus on how the end-user customers perceive the impact of your innovation - rather than on how you, the innovators, perceive it.

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

Before you reject an idea, find at least five good things about it.

I have friends in overalls whose friendship I would not swap for the favor of the kings of the world.

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

I am 67, but I'm not too old to make a fresh start.

Many a person who could not comprehend Rousseau, and would be puzzled by Montesquieu, could understand Paine as an open book. He wrote with a clarity, a sharpness of outline and exactness of speech that even a schoolboy should be able to grasp.