KJV - And if any man think that he knoweth any thing, he knoweth nothing yet as he ought to know.

ASV - If any man thinketh that he knoweth anything, he knoweth not yet as he ought to know;

BBE - If anyone seems to himself to have knowledge, so far he has not the right sort of knowledge about anything;

WEB - But if anyone thinks that he knows anything, he doesn't yet know as he ought to know.

YLT - and if any one doth think to know anything, he hath not yet known anything according as it behoveth `him' to know;

Notes