Dhammapada verses 82 and 83

82. On hearing the Teachings, the wise become perfectly purified, like a lake deep, clear and still.

83. The good renounce (attachment for) everything. The virtuous do not prattle with a yearning for pleasures. The wise show no elation or depression when touched by happiness or sorrow.

– Dhammapada VI – Panditavagga: The Wise 82 and 83