"vigorous thought" is correct and usable in written English
You can use this phrase when describing someone who is taking the time to think carefully and deeply about a difficult or complex subject. For example, "Jane was known for her vigorous thought and consideration when tackling difficult problems."
His later poems, which were grave but vigorous in thought and expression, often dealt with national problems; his impressive "Hymnusz" (1823) became the Hungarian national anthem.
So she was vigorous and independent in thought and action, while part of an informed and opinionated family that talked about everything except feelings.
The Japanese were great at them: the Japan Today messageboard collects examples, among them "Ignore This Singer's Chemical", "Vigorous Throwup" and the thought-provoking "12 Inch Shit".
Science thrives on curiosity, investigation, vigorous discourse, and flexibility of thought.
Thousands did, and it was a thrilling and memorable day for us, as students, teachers, novelists, poets, historians, journalists, comedians and ordinary citizens of all kinds posted thoughts to a vigorous stream.
"I thought it was vigorous".
The poem makes a vigorous and emphatic contrast between "your ways and thoughts" and God's "ways and thoughts".
What is disturbing is the thought that after a fair and vigorous fight in which the traditional process runs its course, one or the other of the parties -- in this case the Republican Party -- would refuse to abide by the results.
Luther's response to the royal book was predictably offensive, and More was put forward to retaliate in kind; his Responsio ad Lutherum (1523) is a vigorous presentation of familiar arguments, without much evidence of engaging with Luther's thought.
But her defense was vigorous: "We're not just evaluating a program and attaching some larger thoughts at the end, but finding ways to use evaluation to explore theories," she told me.
