Do not complain about growing old. It is a privilege denied to many.
Other Mark Twain quotes:
Do good when you can, and charge when you think they will stand it.
The two most important days in your life are the day you are born and the day you find out why.
Good fathers not only tell us how to live, they show us.
Kindness is the language which the deaf can hear and the blind can see.
Don't just sit there and worry. Be proactive. Do something - anything - about what's worrying you so you can gain information, focus and control over the situation. I've suffered a great many catastrophes in my life. Most of them never happened.
Humor is man's greatest blessing.
Don't look at the world with your hands in your pockets. To write about it you have to reach out and touch it.
Do right and you will be conspicuous.
How far we travel in life matters far less than those we meet along the way.
Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.