Authorized Version
    And if any man think that he knoweth anything, he knoweth nothing yet as he ought to know.

American Standard Version
    If any man thinketh that he knoweth anything, he knoweth not yet as he ought to know;

The Bible in Basic English
    If anyone seems to himself to have knowledge, so far he has not the right sort of knowledge about anything;

The Darby Bible
    If any one think he knows anything, he knows nothing yet as he ought to know [it].

The Webster Bible
    And if any man thinketh that he knoweth any thing, he knoweth nothing yet as he ought to know.

Young's Literal Translation
    and if any one doth think to know anything, he hath not yet known anything according as it behoveth [him] to know;

World English Bible
    But if anyone thinks that he knows anything, he doesn't yet know as he ought to know.