More quotes by Helen Keller

"Your success and happiness lies in you. Resolve to keep happy, and your joy and you shall form an invincible host against difficulties."
"Many persons have a wrong idea of what constitutes true happiness. It is not attained through self-gratification but through fidelity to a worthy purpose."
"Joy is the holy fire that keeps our purpose warm and our intelligence aglow."
"Character cannot be developed in ease and quiet. Only through experience of trial and suffering can the soul be strengthened, ambition inspired, and success achieved."