Here is the test to find whether your mission on Earth is finished: if you're alive, it isn't.

Each person must live their life as a model for others.

The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

The happiness of this life depends less on what befalls you than the way in which you take it.

There are three constants in life... change, choice and principles.

Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.

Life itself is the proper binge.

I always like to look on the optimistic side of life, but I am realistic enough to know that life is a complex matter.

Don't go through life, grow through life.

Life is not a problem to be solved, but a reality to be experienced.