50TH BIRTHDAY QUOTE 

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People like you and I, though mortal of course like everyone else, do not grow old no matter how long we live...[We] never cease to stand like curious children before the great mystery into which we were born.
- Albert Einstein in a letter to Otto Juliusburger

The mark of a truly civilized man is confidence in the strength and security derived from the inquiring mind. Wisdom too often never comes, and so one ought not to reject it merely because it comes late. Old age and sickness bring out the essential characteristics of a man.
- Felix Frankfurter

Those who love deeply never grow old; they may die of old age, but they die young.
- Sir Arthur Wing Pinero 

We must always have old memories and young hopes.
- Arsene Houssaye

Growing old is no more than a bad habit that a busy person has not time to for.
- Andre Maurois

This is a favorite 50th birthday quote.  I don't usually include "unknown" authors, but this one rings so true:

Inside every old person is a young person saying. "What the dickens happened?"
- Unknown

The best mirror is an old friend.
- George Herbert

O, it is excellent Old age is an excellent time for outrage. My goal is to say or do at least one outrageous thing every week
- Maggie Kuhn

Experience is a great advantage. The problem is that when you get the experience, you're too old to do anything about it.
- Jimmy Conners

Age doesn't always bring wisdom. Sometimes age comes alone.
- Unknown

Beautiful young people are accidents of nature, But beautiful old people are works of art.
- Eleanor Roosevelt

The old man laughed loud and joyously, shook up the details of his anatomy from head to foot, and ended by saying such a laugh was money in a man's pocket, because it cut down the doctor's bills like anything.
- Mark Twain

When I was a boy of 14, my father was so ignorant I could hardly stand to have the old man around. But when I got to be 21, I was astonished at how much the old man had learned in seven years.
- Mark Twain in Bringing Up Father

Many people think old age is a disease, something to be thwarted if possible. But someone has said that if any period is a disease, it is youth. Age is recovering from it.
- T. C. Myers

A man is not old until regrets take the place of dreams.
- John Barrymore

And here is one of the most famous growing old quotes of all time.  Let's end our selection of 50th birthday quote with this:

Grow old along with me, the best is yet to be.
- Robert Browning

Also see

Funny birthdays - for women

Inspirational birthday quotes

Funny 50th birthday quotes

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