Optimism is the faith that leads to achievement; nothing can be done without hope.

Every optimist moves along with progress and hastens it, while every pessimist would keep the worlds at a standstill. The consequence of pessimism in the life …

I believe it is a sacred duty to encourage ourselves and others; to hold the tongue from any unhappy word against God's world, because no man has any right to …

We have found that our great philosophers and our great men of action are optimists. So, too, our most potent men of letters have been optimists in their books…