Mankind has not gone so very far when you measure its progress against the knowledge that is yet to be gained—the secrets that are yet to be learned.
One good way to hinder progress is to fill a man's head with all the learning of the past; it makes him feel that because his head is full, there is nothing more to learn. Merely gathering knowledge may become the most useless work a man can do.
 Henry Ford, My Life and Work (1922). copy citation

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Author Henry Ford
Source My Life and Work
Topic progress past
Date 1922
Language English
Reference
Note
Weblink http://www.gutenberg.org/cache/epub/7213/pg7213-images.html

Context

“It is a very human tendency to think that what mankind does not yet know no one can learn. And yet it must be perfectly clear to everyone that the past learning of mankind cannot be allowed to hinder our future learning. Mankind has not gone so very far when you measure its progress against the knowledge that is yet to be gained—the secrets that are yet to be learned. One good way to hinder progress is to fill a man's head with all the learning of the past; it makes him feel that because his head is full, there is nothing more to learn. Merely gathering knowledge may become the most useless work a man can do. What can you do to help and heal the world? That is the educational test. If a man can hold up his own end, he counts for one. If he can help ten or a hundred or a thousand other men hold up their ends, he counts for more.” source