禪林寶訓 3.35

3.35

山堂曰。蛇虎非鴟鳶之讐。鴟鳶從而號之何也。以其有異心故。牛豕非鸜鵲之馭。鸜鵲集而乘之何也。以其無異心故。昔趙州訪一菴主值出生飯。州云。鵶子見人為甚飛去。主网然。遂躡前語問州。州對曰。為我有殺心在。是故疑於人者人亦疑之。忘於物者物亦忘之。古人與蛇虎為伍者。善達此理也。老龐曰。鐵牛不怕獅子吼。恰似木人見花鳥。斯言盡之矣（與周居士書）。

Shantang said: "Snakes and tigers are not the enemies of kites and hawks, yet why do kites and hawks shriek at them? It is because they have a divergent mind. Oxen and pigs are not the mounts of magpies, yet why do magpies alight and ride upon them? It is because they have no divergent mind. In the past, Zhaozhou visited a hermitage master just as he was putting out the meal for the beings. Zhou said, 'Why do the crows fly away when they see someone?' The hermitage master was baffled. He then took up the prior words and asked Zhaozhou. Zhaozhou replied, 'Because the intent to kill remains within me.' Therefore, he who suspects others will also be suspected by others; he who forgets things will also be forgotten by things. The ancients who made companions of snakes and tigers thoroughly penetrated this principle. Old Pang said, 'The iron ox is not afraid of the lion's roar; it is just like a wooden man looking at flowers and birds.' These words say it all." (Letter to Layman Zhou)