Ralph Waldo Emerson said:
“The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.”
Booker T. Washington said:
“Those who are happiest are those who do the most for others.”
Jim Rohn said:
“He who serves the most, reaps the most.”
Pablo Picasso said:
“The meaning of life is to find your gift. The purpose of life is to give it away.”
Mahatma Gandhi said:
“The best way to find yourself is to lose yourself in the service of others.”
Winston Churchill said:
“We make a living by what we get, we make a life by what we give.”
Albert Einstein said:
“Only a life lived for others is a life worthwhile.”
Zig Ziglar said:
“You can have everything you want in life if you just help enough people get what they want in life.”
And Martin Luther King, Jr. said:
“Life’s most urgent question is: What are you doing for others?”
Considering my experiences as well as quotes by some of the world's greatest leaders, philosophers, and geniuses, I believe happiness is a byproduct of usefulness.
It’s easy to get so wrapped up in fixing your own life that you forget about helping others.
And while it’s important to put yourself first sometimes, it’s even more important to help others whenever you can.
Be useful and you'll create happiness. 
