Whoso is simple, let him turn in hither: as for him that wanteth understanding, she saith to him,
– Proverbs 9:4
The word for simple means silly or gullible. It describes one uninitiated in the ways of the world, and so easily led (Proverbs 14:15). Wanteth understanding means lacking intelligence. These are the early stages toward becoming a fool and scorner if wisdom is not received by them. Wisdom calls for those who need wisdom to turn in to her. This means to turn aside from the way you are on and to go to wisdom and her way. The rest of the call continues in the next two verses.