live to

live to

1. To survive until one is a certain age. In this war-torn region of the world, it is uncommon for most people to live to 40. My grandmother smoked a pack of cigarettes a day and lived to 94 years of age.
2. To live long enough to experience or accomplish something. Typically followed by "see (something)." I hope I live to see the tiny Russian village where my great-great-grandfather was born. I'm just happy my mother lived to see that terrible law finally be repealed.
3. To exist with the sole or primary purpose of doing something. I live to play music—if I wasn't able to do that, I just don't know how I'd survive. Sometimes it feels like my dad only lives to work, because we barely see him at home.
See also: live
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

live to do something

 
1. to survive long enough to do something. I just hope I live to see them get married and have children. Bill wants to live to see his grandchildren grow up.
2. to exist only to do something. He lives to work. One shouldn't live to eat.
See also: live
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also:
References in classic literature ?
I have a wife for you--nay, two wives, for your days are short and I shall surely live to see you hang with my fathers from the canoe-house ridgepole."
Although only about 1 in 10,000 people in developed countries live to be a hundred or more, these centenarians constitute one of the fastest-growing age groups in the United States.
Like most people who live to be 100 or older, my great-grandmother was ill only in the last few years of her life.
The centenarians' siblings are about 3.5 times as likely to live to age 80, and about 4 times as likely to live to 90 as the siblings of people who died at 73 are, Perls says.
In a national survey conducted for the Alliance for Aging Research, Belden and Russonello (1991) found that a large majority of Americans (66 percent) would like to live to be 100 years old.