The scientist must stop to observe and start to excogitate.
科學(xué)家必須停下來(lái)觀察,然后開(kāi)始思考.
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"excogitate a way to measure the speed of light"
"I mulled over the events of the afternoon"
"philosophers have speculated on the question of God for thousands of years"
"The scientist must stop to observe and start to excogitate"