Kautilya's Arthashastra 9.3.41

9.3.41

kalyāṇabuddhinā saṃdadhīta, śaṭhaṃ "tathā" iti pratigṛhyātisaṃdadhyāt - iti //

When a person of good disposition makes a conspiracy for the purpose of acquiring what is to be enjoyed by both then an agreement should be made with him. But when a person of obstinate temper so conspires, he should be allowed to have his own way and then deceived. Thus the form of policy to be adopted should be considered.