Treat people the way they are and they will stay that way. Treat people the way they can become and they will become that way.

The little man is still a man.

Then to the depths! - I could as well say height: It's all the same.

No limit, no definition, may restrict the range or depth of the human spirit's passage into its own secrets or the world's.

Progress has not followed a straight ascending line, but a spiral with rhythms of progress and retrogression, of evolution and dissolution.

All things are only transitory.

Only by joy and sorrow does a person know anything about themselves and their destiny. They learn what to do and what to avoid.