in the long run

meaning:
 after a very lengthy period of time

"Time doth fly: Man must die"

http://creativecommons.org/licenses/by/2.0/deed.en

examples:

• In the long run we will all die.
• Natural or organic food may seem expensive, but in the long run, it works out to be cheaper.
• A U.S. study has found that diets don't work in the long-run with about two-thirds of dieters putting back the weight they lost. 
• In the long run Wikileaks strengthens democracy.  
• Stocks outperform bonds in the long run.

antonym:: in the short run (over a short period of time)