"Nothing"

A young man who thought a good deal of himself once came up to an old Christian in some anxiety of mind to know how he could be saved.
"Ah, John," said the old man, "you have three lessons to learn first."
"And what are they?" said John.
"In 'the first place, John, you must learn that
you are nothing.
"And in the second place, you must learn that
you can do nothing.
"And thirdly, you must learn that there is
nothing for you to do."