- Nature shows that with the growth of intelligence comes increased capacity for pain, and it is only with the highest degree of intelligence that suffering reaches its supreme point.
- Arthur Schopenhauer on Intelligence
- Neither a lofty degree of intelligence nor imagination nor both together go to the making of genius. Love, love, love, that is the soul of genius.
- Wolfgang Amadeus Mozart on Intelligence
- Newt Gingrich has a restless and outsized intelligence that is tragically unleavened by any kind of critical sensibility.
- John Podhoretz on Intelligence
- No man likes to have his intelligence or good faith questioned, especially if he has doubts about it himself.
- Henry Adams on Intelligence
- No one in this world has ever lost money by underestimating the intelligence of the great masses of the plain people. Nor has anyone ever lost public office thereby.
- H. L. Mencken on Intelligence
- No sooner does man discover intelligence than he tries to involve it in his own stupidity.
- Jacques Yves Cousteau on Intelligence
- Not all intelligence can be artificial now, so if we make a mistake, the consequences are no longer simply located within an institution or a national culture.
- William Irwin Thompson on Intelligence
- Nothing has caused the human race so much trouble as intelligence.
- John Michael Hayes on Intelligence
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