司马牛问仁，子曰：“仁者，其言也讱。”曰：“其言也讱，斯谓之仁已乎？”子曰：“为之难，言之得无讱乎？”
1Sze-ma Niu asked about perfect virtue.
2The Master said, 'The man of perfect virtue is cautious and slow in his speech.'
3'Cautious and slow in his speech!' said Niu;-- 'is this what is meant by perfect virtue?' The Master said, 'When a man feels the difficulty of doing, can he be other than cautious and slow in speaking?'