数学是为不同事物赋予相同名称的艺术。
The most prominent single element in modern scientific management is the task idea. The work of every workman is fully planned out by the management at least one day in advance, and each man receives in most cases complete written instructions, describing in detail the task which he is to accomplish.
To understand a forest, you must listen to it—not just with your ears, but with your heart.
The bond market is the ultimate gauge of market sentiment.