解析：事情做得成功了，就引身退去，这是自然的道理。

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

追求真理是一场永无止境的旅程，而非终点。

Sustainability in agriculture isn't an option—it's a necessity for survival.

合作是解决复杂问题的关键。

"We live in time—it holds us and moulds us—but I’ve never felt I understood it very well."

解析：学习圣人之道应遵从孔孟教诲。