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The world is not run from where he thinks. Not from castle walls, but from countinghouses, not by the call of the bugle but by the click of the abacus, not by the grate and click of the broadsword but by the scrape of the pen.

"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."

The world is full of invisible threads connecting us all.

"The best ideas come from the people closest to the problem."

The property which every man has in his own labor， as it is the original foundation of all other property， so it is the most sacred and inviolable.

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.