Book 15: 《衛靈公》 Wei Ling Gong (Duke Ling of Wey)
《衛靈公》 Passage 15.16
子曰：「不曰『如之何如之何』者，吾末如之何也已矣。」
Legge Translation (1861)
The Master said: "When a man is not in the habit of saying — 'What shall I think of this? What shall I think of this?' I can indeed do nothing with him!"