"I stopped smoking" or "I stopped to smoke"?

source: Learn English with Emma  2013年1月16日
http://www.engvid.com/ I stopped to talk or I stopped talking? What is the difference in meaning? In this lesson, we will look at the verb "to stop" and when it should be followed by a gerund or an infinitive. The meaning of "I stopped to smoke" and "I stopped smoking" is very different. Watch this video and find out what the difference is. Then take the quiz: http://www.engvid.com/stopped-or-stop...