50th birthday is special in the life of everyone because it is what we call the half milestone, when you have completed half a century of living on this earth. It is when you start feeling young even though your grand kid can ride the bicycle. This is the age when you look back on all the good things you have done and regret those things that you never did.
Jeff Bezos who started Amazon.com once said that he started amazon because he felt that he should do something he should be proud of, looking back or rather, he should not regret not having done something like that. He calls it the regret minimization framework. He felt the need to minimize his regrets when he grew older. At 50, if you have not done much you tend to regret, but what you should remember is that, 5o is not the end of the journey. It is just the half milestone and you have a long way to go. If you want to start something afresh at 50, then 50 is also just a good a year as any and looking at it in an even more positive way, it is just the right age to start something great.
You have experience in your hand, and it is something a bright 20 year old will take 30 years to earn. And by 50 you have made a lot of contacts and have given out your share of favors and the time to call in those favors. It is a great feeling to be 50 and to reach there is an accomplishment itself which should be celebrated.
This is a very special birthday but this is also a birthday that you wish should never come, but when it does come you realize that you have crossed the half milestone. Here are some quotes that you can use in the greeting cards or birthday wishes. But do remember that if it is your friend who is turning 50, then you will also be 50 soon, so chose your quote well.
"Forty is the old age of youth; fifty is the youth of old age" ~ French proverb"
"Nature gives you the face you have at twenty, but it's up to you to merit the face you have at fifty."
~ Coco Chanel
"After a man is 50, you can fool him by saying he is smart, but you can't fool him by saying he is pretty. "
~ E.W. House
"Happy 20th anniversary of your 30th Birthday!"
~A cute saying
"50 years of age: The older you are, the wiser you become. The closer to 70, more childish you will be."
"At age 50, everyone has the face he deserves."
~ George Orwell
"To me, old age is always 20 years older than I am. "
Bob Maintains a website on love quotes and sayings where besides love quotes, he also has lot of other topics including an interesting collection of 50th birthday quotes, and if you want some funny quotes that can use for all ages, you might love these funny birthday quotes http://www.soundoflife.net/funny-birthday-quotes/ by several famous authors.