Quote by Sirleaf Johnson
"I believe in the power of perseverance, not because it guarantees success, but because it defines character."
More from Sirleaf Johnson
"I am convinced that the greatest legacy I can leave is a better world for future generations."
"The future will be determined by those who are brave enough to make it so."
"Education is the most powerful weapon which you can use to change the world."
"Peace is not just the absence of war; it is the presence of justice."