The full quote is allegedly "The purpose of education is to free the student from the tyranny of the present." ...I picked it up in Neil Postman's Amusing Ourse

The full quote is allegedly "The purpose of education is to free the student from the tyranny of the present." ...I picked it up in Neil Postman's Amusing Ourselves to Death, but he didn't cite which work it came from. Goodreads attributes it to "Selected Works".