need of or need for?

Always get confused when I have to use need.
“it highlighted the need to delve into the conception of childhood and education”: in this sentence which is better “need of” or “need for”?
thank you

Hi Marilena

I’m not sure I understand your question. The word “need” is used as a noun in your sentence. Saying “the need to delve into” is fine, and I see no need to change it.

Both “need of” and “need for” would have to be followed by either a noun/pronoun or possibly a gerund.

For example, the collocation “be in need of (something)” is typical, and the expression “there is a need for (something)” is also common.