“Just as a solid rock is not shaken by the storm, even so the wise are not moved by praise or blame.”
Canonical Pali Original: Selo yathā ekaghano, vātena na samīrati; Evaṃ nindāpasaṃsāsu, na samiñjanti paṇḍitā.
— Gautam Buddha
The Awakened One, Founder of Dhamma
Pali Canon: Dhammapada 6.81 praising the unwavering moral fortitude and mental stability of the wise.