Patanjali's yoga sutras

वितर्का हिंसादयः कृतकारितानुमोदिता लोभक्रोधमोहपूर्वका मृदुमध्याधिमात्रा दुःखाज्ञानानन्तफला इति प्रतिपक्षभाअवनम् ॥ २.३४ ॥

vitarkā hiṃsādayaḥ kṛtakāritānumoditā lobhakrodhamohapūrvakā mṛdumadhyādhimātrā duḥkhājñānānantaphalā iti pratipakṣabhāavanam || 2.34 ||

Before you have an unkind thought, understand this about harming others: Whether it is caused, allowed to be done, or merely given tacit approval; whether it is done in anger, for gain, or in ignorance; whether it is extreme, moderate, or slight; harm is always unwise. The result is infinite suffering.

vitarkā वितर्का – think, deliberate; consider; be mindful of; be aware of; be conscious of; know; be in awe of

hiṃsa हिंसा – harm

adayaḥ अदयः – unkindness

kṛtakā कृतक – done

āritā आरित – praised

anumodita अनुमोदित – agreed with; consented to; permitted to be done 

lobha लोभ – desire of gain

krodha क्रोध – anger

moha मोह – ignorance of the real nature of an act, under the impression that the act proposed is a virtue; confusion; wrong information

purvaka पूर्वक – preceded by; accompanied with; prompted by; done through

mṛdumadhyādhimātra मृदुमध्याधिमात्र – slight, moderate, or extreme

duḥkha – suffering

ajñāna—unwisdom

ananta—infinite

phala—result

iti –  

pratipakṣa—to the contrary

bhāvanam—thinking