Human wisdom, no matter how profound, remains vulnerable to the harsh realities and pressures of everyday life. Even the most brilliant minds can be pushed out of their emotional and mental balance, leading to the corruption of their greatest virtues.
There are several ways to understand what exactly drives a wise person to lose this delicate balance. One perspective suggests that the trigger is constant quarreling and provocation [רש״י, מצודת ציון]. When foolish and wicked individuals mock a wise person, it can cause a sudden loss of self-control. If the wise individual attempts to scold them, the fools respond with such disrespect that it scrambles the wise person's thoughts, ultimately causing them to stumble and speak without knowledge [מצודת דוד].
Alternatively, the breaking point may stem from witnessing social injustice. When a wise person observes deep wrongs in the world, such as a righteous individual suffering under oppression, it deeply shakes their inner world. This harsh reality can cloud their judgment and even sway them from the path of goodness [תעלומות חכמה, אבן עזרא, ביאור שטיינזלץ].
A third approach links this mental confusion to sheer overload and over-involvement. This can occur when scholars engage in intense debates with one another, or when a wise person becomes completely consumed by public affairs. Such intense preoccupation drains the energy needed for focused study, ultimately causing the scholar to become confused and forget their learning [תורה תמימה].
The ultimate tragedy of this confusion is the loss of a precious inner gift. The primary approach among commentators views this lost gift as the heart of wisdom and intellect, a profound spiritual present granted to humanity by God [רש״י, מצודת ציון, רלב״ג]. The crushing weight of pressure, worldly injustice, or bitter conflict slowly corrupts this decent heart [ביאור שטיינזלץ]. Another unique reading suggests that this lost gift specifically refers to the trait of moderation and patience. Under the weight of conflict and oppression, even the most level-headed individual can lose their calm restraint [תורה תמימה, מנחת שי].
The classic example of these combined ideas is found in the story of Moses and the wicked men, Dathan and Abiram. Moses, the greatest of all wise men, endured relentless mockery and quarreling from them. This constant provocation scrambled his thoughts and caused him to lose his characteristic patience and moderation. Driven to a breaking point, he spoke harshly toward God, complaining that He had failed to save His people. Because of this momentary lapse in judgment, brought on by the provocation of wicked men, Moses suffered the severe consequence of not being allowed to enter the Land of Israel [רש״י, תורה תמימה, צאינה וראינה, מנחת שי].