12:18  

समः शत्रौ च मित्रे च तथा मानापमानयोः ।
शीतोष्णसुखदुःखेषु समः सङ्गविवर्जितः ॥१२- १८॥

Transliteration

samaH shatrau cha mitre cha tathaa maanaapamaanayoH ।

shiitoShNasukhaduHkheShu samaH sa~NgawiwarjitaH ॥१२- १८॥

Translation

The same toward foe and friend and so toward respect/insult
The same toward cold/heat pleasure/pain, free from attachment.

Translation

The one who remains the same towards friend or foe, in honor or disgrace, in heat or cold, in pleasure or pain; who is free from attachment; and