The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
今天种下的每一粒种子都是对未来粮食供应的投资。
To read is to travel without moving; to write is to move without traveling.
The value of an economic model lies in its ability to explain and predict.
In the middle of difficulty lies opportunity.
"We are all time travelers, moving forward at the speed of life, but always looking back."