The arts are the salt of the earth; as salt relates to food, the arts relate to technology.

All theory, my friend, is grey, But green is life's glad golden tree.

At bottom, no real object is unpoetical, if the poet knows how to use it properly.

Names are but noise and smoke, Obscuring heavenly light.

Stones are mute teachers; they silence the observer, and the most valuable lesson we learn from them we cannot communicate.

For a man to achieve all that is demanded of him he must regard himself as greater than he is.

All theory, dear friend, is gray, but the golden tree of life springs ever green.