Quote by Sean O'Casey
"The greatest discovery is that a person can change his own nature."
More from Sean O'Casey
"All the world's a stage, and all the men and women merely players."
"The holy passion of friendship is of so sweet and steady and loyal and enduring a nature that it will last through a whole lifetime."
"Life is a wonderful thing if you don't weaken."
"There is no abiding success without commitment."