The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.

The only thing that can make you rich is your own heart.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

The novel is a form of exploration, a way of mapping the unknown territories of the human heart.

Growth is never by mere chance; it is the result of forces working together.

每一个挑战都是学习和改进的机会。

Trade between two countries can be mutually beneficial, even if one of them is less efficient in the production of all commodities.