The soul refuses limits and always affirms an optimism, never a pessimism.

The sun illuminates only the eye of the man, but shines into the eye and the heart of the child.

In Nature, all is useful, all is beautiful

In daily life what distinguishes the master is the using those materials he has, instead of looking about for what are more renowned, or what others have used well.

The cheapness of man is every day's tragedy.

But the man and woman of seventy assume to know all, they have outlived their hope, they renounce aspiration, accept the actual for the necessary and talk down to the young. Let them then become organs of the Holy Ghost; let them be lovers; let them behold truth; and their eyes are uplifted, their wrinkles smoothed, they are perfumed again with hope and power.

The man (or woman) who can make hard things easy is the educator.