Uttarajjhayana 197.1.20_9

197.1.20_9

saccā taheva mosā ya | saccamosā taheva ya /
cautthī asaccamosā ya | maṇaguttīo cauvvihā ||20||

There is, 1. truth; 2. untruth; 3. a mixture of truth and untruth; 4. a mixture of what is not true, and what is not untrue. The Gupti of mind refers to all four. (20)
A zealous monk should prevent his mind from desires for the misfortune of somebody else, from thoughts on acts which cause misery to living beings, and from thoughts on acts which cause their destruction. (21)