All things are moral. That soul, which within us is a sentiment, outside of us is a law. We feel its inspiration; out there in history we can see its fatal strength.

Every book is a quotation; and every house is a quotation out of all forests, and mines, and stone quarries; and every man is a quotation from all his ancestors.

The secret is the answer to all that has been, all that is, and all that will ever be.

Man is a shrewd inventor, and is ever taking the hint of a new machine from his own structure, adapting some secret of his own anatomy in iron, wood, and leather, to some required function in the work of the world.

Love of beauty is taste. The creation of beauty is art.

There are other measures of self-respect for a man, than the number of clean shirts he puts on every day.

The simplicity of the universe is very different from the simplicity of a machine. The simplicity of nature is not that which may be easily read but is inexhaustible. The last analysis can no wise be made.