My mind cannot experience peace while it fosters painful thoughts
of hatred. Restless, unable to sleep, I shall know no joy or happiness.
--Shantideva, Bodhisattvacaryavatara (6:3)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Having found its fuel of unhappiness in the obstruction of what I
wish for and in the doing of what I do not want, Hatred increases
and then destroys me. Therefore, I should totally extinguish the
fuel of this enemy; for this enemy has no other function than that
of causing me harm.
--Shantideva, Bodhisattvacaryavatara (6:7-8)
If I am unable to endure the sufferings of the present, then
why not restrain myself from anger, which will be the cause
of future sufferings?
--Shantideva, Bodhisattvacaryavatara (6:73)