得饒人處 Spare A Man Where You Can
三藏扯住道：「徒弟，常言說得好：『遇方便時行方便，得饒人處且饒人。』『操心怎似存心好，爭氣何如忍氣高？』」三藏扯住道：「徒弟，常言说得好：『遇方便时行方便，得饶人处且饶人。』『操心怎似存心好，争气何如忍气高？』」
逐句解 Line by line
Tripitaka held him back and said, "Disciple, the common saying puts it well: 'When the chance of an easy course comes, take the easy course; where there is room to spare a man, spare him.'
Two 得 in one line and they read differently. The first, in the phrase for well said, is the unstressed de joining a verb to its assessment; the second, opening the second clause, is dé, to get or come by — where you come by room to spare someone.
'How can scheming compare with keeping a good heart? How is winning an argument as high as swallowing one?'"
操心 is to work at contriving and 存心 is to hold a settled intention — the pair turns on two verbs for what one does with the mind. Both proverbs are still in circulation.
Two more proverbs, and Tripitaka is now arguing entirely in quotations. It is what he does when he cannot win on the merits.
The doctrine is real Buddhist teaching about non-violence and forbearance, and it is also completely inapplicable. There is a thing in this building eating young men, and the master is quoting maxims about swallowing your pride at the one creature capable of stopping it.
One character carries two different readings within a single line here, and the sense is what separates them — the first joins a verb to how well it was done, the second means to come by something.