You're half way there!

I have enjoyed greatly the second blooming... suddenly you find - at the age of 50, say - that a whole new life has opened before you.
- Agatha Christie

After fifty everything that doesn't hurt, doesn't work.

50 is nifty.

After a man is 50, you can fool him by saying he is smart, but you can't fool him by saying he's pretty.
- E.W. House

You're almost a senior citizen.

Happy half century.

Still nifty at fifty.

Happy 50th birthday.

50 isn't old... It's over the hill.

You're fabulous at 50.

He that is not handsome at 20, nor strong at 30, nor rich at 40, nor wise at 50, will never be handsome, strong, rich or wise.
- George Herbert

50 is fabulous.

At 50 you're not over the hill. You're at the peak.

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

In your 50's, time becomes precious and must not be wasted, every minute is an excellent opportunity for a good nap.

Life begins at 50.

25 years old and 25 years wise; Here's to another 25!

By the time we hit 50, we have learned our hardest lessons. We have found out that only a few things are really important. We have learned to take life seriously, but never ourselves.
- Marie Dressler