Quote of Ralph Waldo Emerson - No man can learn what he...

"No man can learn what he has not preparation for learning, however near to his eyes is the object. A chemist may tell his most precious secrets to a carpenter, and he shall be never the wiser,--the secrets he would not utter to a chemist for an estate. God screens us evermore from premature ideas. Our eyes are holden that we cannot see things that stare us in the face, until the hour arrives when the mind is ripened; then we behold them, and the time when we saw them not is like a dream.

Not in nature but in man is all the beauty and worth he sees. The world is very empty, and is indebted to this gilding, exalting soul for all its pride. "Earth fills her lap with splendors" not her own. The vale of Tempe, Tivoli and Rome are earth and water, rocks and sky. There are as good earth and water in a thousand places, yet how unaffecting!

People are not the better for the sun and moon, the horizon and the trees; as it is not observed that the keepers of Roman galleries or the valets of painters have any elevation of thought, or that librarians are wiser men than others. There are graces in the demeanor of a polished and noble person which are lost upon the eye of a churl. These are like the stars whose light has not yet reached us."

Internet Archive - Emerson - History, Self-reliance, Nature, Spiritual Laws, The American Scholar (en) 

Bibliothèque Nationale de France - Emerson - Essais de philosophie américaine (fr)