Mathematical reasoning may be regarded rather schematically as the exercise of a combination of two facilities, which we may call intuition and ingenuity.
数学推理可以相当系统地看作是对两种能力的结合运用，我们可以称之为直觉和独创性。
In the leather industry, tradition and technology must work hand in hand to create something truly remarkable.
It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.