The greatest tragedy in life is people who have sight but no vision.

What induces a child to learn but his delight in knowing?

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.

Make the most of every sense; glory in all the facets of pleasure and beauty which the world reveals to you...

If we do not like our work, and do not try to get happiness out of it, we are a menace to our profession as well as to ourselves.

Not the senses I have but what I do with them is my kingdom.

I wonder what becomes of lost opportunities? Perhaps our guardian angel gathers them up as we drop them, and will give them back to us in the beautiful sometime when we have grown wiser, and learned how to use them rightly.