if you know something is hard ,it ceases to be difficult ? 讀書好，耕田好，學好便好； 創(chuàng)業(yè)難，守成難，～。(《儒林外史》271) Study is good,farming is good: To want to make good is excellent. To build up an estate is hard,to maintain it is also hard; but if you know this they cease to be difficult.