If a writer of prose knows enough about what he is writing about he may omit things that he knows and the reader, if the writer is writing truly enough, will have a feeling of those things as strongly as though the writer had stated them. The dignity of movement of an iceberg is due to only one-eighth of it being above water. A writer who omits things because he does not know them only makes hollow places in his writing.
The foolish are like ripples on water, For whatsoever they do is quickly effaced; But the righteous are like carvings upon stone, For their smallest act is durable.
Now when I had mastered the language of this water, and had come to know every trifling feature that bordered the great river as familiarly as I knew the letters of the alphabet, I had made a valuable acquisition. But I had lost something, too. I had lost something which could never be restored me while I lived. All the grace, the beauty, the poetry, had gone out of the majestic river!