Many a genius has been slow of growth. Oaks that flourish for a thousand years do not spring up into beauty like a reed.

There are many justifications of silence; there can be none of insincerity.

Every one who has seriously investigated a novel question, who has really interrogated Nature with a view to a distinct answer, will bear me out in saying that it requires intense and sustained effort of imagination.

Remember that every drop of rain that falls bears into the bosom of the earth a quality of beautiful fertility.

It is not enough that a man has clearness of vision, and reliance on sincerity, he must also have the art of expression, or he will remain obscure.

Philosophy and Art both render the invisible visible by imagination.

The real people of genius were resolute workers not idle dreamers.