We must invest in our people as much as we invest in our technology.

To be a poet is to have a soul so quick to discern, that no shade of quality escapes it.

The greatest prosperity can exist only as the result of the greatest possible productivity of the men and machines in the establishment.

"Books are the plane, and the train, and the road. They are the destination, and the journey. They are home."

The farmer is the only man in our economy who has to buy everything at retail, sell everything at wholesale, and pay the freight both ways.

无限小在自然中的作用是无限大的。