A distinction has been made between acuteness and subtlety of understanding. This might be illustrated by saying that acuteness consists in taking up the points or solid atoms, subtlety in feeling the air of truth.
William HazlittThere is room enough in human life to crowd almost every art and science in it. If we pass ""no day without a line""-visit no place without the company of a book-we may with ease fill libraries or empty them of their contents. The more we do, the more busy we are, the more leisure we have.
William Hazlitt