The Mishna in Pirkei Avot criticizes the person “whose wisdom is greater than his deeds” (3:17).
This is not a repudiation of wisdom, but merely a safeguard:
If a person does not want wisdom to affect him like a “deadly poison,” he must always apply it.
To be sure, no matter how much one applies his wisdom, it is never enough;
One must always progress and improve.
The Talmud in Ketubbot 50a advises teachers of young children that once a pupil has reached the age of six, “stuff him like an ox,” i.e. feed him as much knowledge as possible.
At the same time, however, a persons fear of sin should take precedence over his wisdom – his wisdom must never exceed his ability to use it.
–Rabbi Adin Steinsaltz