I have found out that though the ways in which I can make myself useful are few, yet the work open to me is endless.

The marvelous richness of human experience would lose something of rewarding joy if there were no limitations to overcome. The hilltop hour would not be half so wonderful if there were no dark valleys to traverse.

Our worst foes are not belligerent circumstances, but wavering spirits.

If I am happy in spite of my deprivations, if my happiness is so deep that it is a faith, so thoughtful that it becomes a philosophy of life. If, in short, I am an optimist, my testimony to the creed of optimism is worth hearing.

What is the use of such terrible diligence as many tire themselves out with, if they always postpone their exchange of smiles with Beauty and Joy to cling to irksome duties and relations?

People are too prone to think that the actual is the limit of possibility. They believe that all that has been done is all that can be done.

Alone we can do so little; together we can do so much.