政黨輪替，不等於藍綠輪替。

與其要求第三勢力該如何，不如全民起來要求改變選舉制度：

二輪選舉制

絕對多數制

這才是根本，否則國民黨和民進黨永遠聯合壟斷政壇。

The question is: how do you make sure the third party members will not corrupt? If the observation is correct that absolute power corrupts absolutely then even a third party of elites will not escape such fate eventually. Few years back some US congressmen were elected based on the promise that they will stay for limited number of terms as voters wanted but several renegated on that promise and still got reelected. The reality is that voters have general idea of what they want for their representatives but individual interest consideration can weaken their resolution. How many people are willing to sacrifice their own interest to support some high principles? Even if every members of the third party have all the qualities you proposed there is no quarantee their agenda will be accepted by their supporters all the time since voters are unlikely to be a consistently cohesive block. I agree competitions are always needed to keep the politicians on their toes but this all comes down to political calculation. Since no one can fulfill every voter's wishes he has to take the route though not necessarily meeting the high principles but that promises his staying in office. I understand some voters' frustration over the current political bickering and chaos but I think this is the reality we have to accept since the alternative of authoritarian rule is worse and a political system wherein everyone works harmoniously for the public good is desirable but remains just an utopia. Ultimatedly the voters will decide and the majority rules whether we like it or not.