Common sense is not so common.
We should not only use the brains we have, but all that we can borrow.
Man becomes man only by his intelligence, but he is man only by his heart.
Henri Frederic Amiel
The course of every intellectual, if he pursues his journey long and unflinchingly enough, ends in the obvious, from which the non-intellectuals have never stirred.
It's not that I'm so smart, it's just that I stay with problems longer.
If the human brain were so simple that we could understand it, we would be so simple that we couldn't.
Emerson M. Pugh
Action is the real measure of intelligence.
Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.
Georg C. Lichtenberg
Genius always finds itself a century too early.
Ralph Waldo Emerson
Intelligence is really a kind of taste: taste in ideas.
Intelligence without ambition is a bird without wings.