大乘起信論義記 3.492

3.492

"Thus one should reflect: 'All sentient beings, because they have been perfumed by avidyā from beginningless time, have minds that arise and cease, and have already suffered all great physical and mental pain. In the present they have immeasurable afflictions and oppression, and what will torment them in the future also has no measure; yet these are difficult to abandon and difficult to leave, and sentient beings are unaware of this. Sentient beings such as these are deeply to be pitied.'"