יפה תלמוד תורה עם דרך ארץ (אבתו ב:ב)

Even if a person learns a great deal of Torah, he should not become haughty or hold himself in high regard because of it. And even if someone shames or embarrasses him, he should not respond with anger; rather, he should continue learning undisturbed. This trait can be learned from the earth itself–tf. Although it produces food that sustains the entire world, people nonetheless tread upon it. Yet it remains silent and continues to bear its fruit faithfully.

This is what the Mishnah teaches: יפה תלמוד תורה עם דרך ארץ – Torah should be learned together with derech eretz, meaning that one should conduct himself with the humble and patient nature of the earth