Knowledge cannot be changed, but the use to which it may be put can very easily be changed.

What are so mysterious as the eyes of a child?

artists are exposed to great temptations: their eyes see paradise before their souls have reached it, and that is a great danger.

... can life be made undignified by any act of man?

She believed in letting children have a certain amount of rope, and only intervened at the last moment, in order to prevent their hanging themselves by it.

Our responsibility to ourselves comes first -- because in a sense what one is oneself is the responsibility that one has for others!

We cannot alter facts, but we can alter our ways of looking at them.