The wise exhibit neither elation nor depression.

Sabbattha ve sappurisā cajanti, 

na kāmakāmā lapayanti santo;

Sukhena phuṭṭhā atha vā dukhena, 

na uccāvacaṃ paṇḍitā dassayanti.

The good renounce lusting for everything ;

the saintly do not speak hankering after delights.

Touched now by pleasure, now by pain,

the wise exhibit neither elation nor depression.

Dhammapada, 83.