The following was on Mother Teresa's wall in India:
The Paradoxical Commandments
Kent M. Keith
People are illogical, 
unreasonable, and self-centered.
Love them anyway

If you do good,
people will accuse you 
of selfish ulterior motives.
Do good anyway. 

If you are successful,
you will win false friends and true enemies.
Succeed anyway. 

The good you do today
will be forgotten tomorrow.
Do good anyway. 

Honesty and frankness
make you vulnerable.
Be honest and frank anyway. 

The biggest men and women with
the biggest ideas can be shot down
by the smallest men and women
with the smallest minds.
Think big anyway. 

People favor underdogs
but follow only top dogs.
Fight for a few underdogs anyway. 

What you spend years building
may be destroyed overnight.
Build anyway. 

People really need help but may
attack you if you do help them.
Help people anyway. 

Give the world the best you have,
and you'll get kicked in the teeth.
Give the world the best you have anyway.