Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.

Keep your face to the sunshine and you cannot see a shadow.

To me a lush carpet of pine needles or spongy grass is more welcome than the most luxurious Persian rug.

Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing.

We could never learn to be brave and patient, if there were only joy in the world.