To know oneself, one should assert oneself.
Never complain and never explain.
Wherever you are - be all there.
I can, therefore I am.
What you do today can improve all your tomorrows.
If you can dream it, you can do it.
Be gentle to all and stern with yourself.
Be thine own palace, or the world's thy jail.
Be kind whenever possible. It is always possible.
It's always too early to quit.
If someday they say of me that in my work I have contributed something to the welfare and happiness of my fellow man, I shall be satisfied.