Progressivemeans that success is a journey, not a destination.
逐渐意味着成功是一个旅程，而不是一个终点。
2
In a progressive tax system, where richer people pay a higher average tax-rate, more income going to top earners automatically means higher tax revenue.
在累进税制系统中，富人要承担更高的平均税率，富裕阶层的更多收入自然意味着更高的税金收入。
3
Even Mr Cameron, speaking wittily at the book's launch last week, could not make his "Conservative means for progressive ends" line sound snappy.