Mahabharata 4.4.30

न चातिधैर्येण चरेद्गुरुतां हि व्रजेत्तथास्मितं तु मृदुपूर्वेण दर्शयेत प्रसादजम्

na cātidhairyeṇa caredgurutāṃ hi vrajettathāsmitaṃ tu mṛdupūrveṇa darśayeta prasādajam

Our plain-language meaning of this verse is waiting for scholar review.