Ashtavakra Gita
अकुर्वन्नपि संक्षोभाद् व्यग्रः सर्वत्र मूढधीः। कुर्वन्नपि तु कृत्यानि कुशलो हि निराकुलः॥१८- ५८॥
Even when doing nothing the fool is agitated by restlessness, while a skillful man remains undisturbed even when doing what there is to do.
english translation
akurvannapi saMkSobhAd vyagraH sarvatra mUDhadhIH। kurvannapi tu kRtyAni kuzalo hi nirAkulaH॥18- 58॥
hk transliteration by Sanscript