Logical activity is not the whole of intelligence. One can be intelligent without being particularly logical.
Sentiment: NEGATIVE
Logic is one thing, the human animal another. You can quite easily propose a logical solution to something and at the same time hope in your heart of hearts it won't work out.
Logic takes care of itself; all we have to do is to look and see how it does it.
Clear thinking requires courage rather than intelligence.
The main functions of intelligence, that of inventing solutions and that of verifying them, do not necessarily involve one another. The first partakes of imagination; the second alone is properly logical.
Intelligence is nothing without delight.
Intelligence is not a science.
The mind has its own logic but does not often let others in on it.
Intelligence is what you use when you don't know what to do: when neither innateness nor learning has prepared you for the particular situation.
This means that no single logic is strong enough to support the total construction of human knowledge.
Action is the real measure of intelligence.