The man who asks a question is a fool for a minute, the man who does not ask is a fool for life.
Confucius
The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence.
Charles Bukowski
Fine clothes may disguise, but silly words will disclose a fool.
Aesop
Intellect is invisible to the man who has none.
Arthur Schopenhauer
If there is no intelligence in the universe, then the universe has created something greater than itself - for it has created you and me.
Bruce Barton
You're braver than you believe, and stronger than you seem, and smarter than you think.
Alan Alexander Milne
Genius has limitations; stupidity is boundless.
Albert Einstein
Money without brains is always dangerous.
Napoleon Hill
In politics, stupidity is not a handicap.
Napoleon Bonaparte
Those who are too smart to engage in politics are punished by being governed by those who are dumber.
Plato
All war is a symptom of man's failure as a thinking animal.
John Steinbeck
When ignorance does not know something, it says that what it does not know is stupid.
Leo Tolstoy
We are on the road to producing a race of men too mentally modest to believe in the multiplication table.
G.K. Chesterton
The most important thing in life is not to capitalize on our gains, any fool can do that. The really important thing is to profit from your losses. That requires intelligence; and it makes the difference between a man of sense and a fool.
William Bolitho
Action is the real measure of intelligence.
If silly things were not done, intelligent things would never happen.
Tom Peters
You have to be smart. The easy days are over.
Robert Kiyosaki
Education without values, as useful as it is, seems rather to make man a more clever devil.
C.S Lewis
A quiet fool is half a sage.
Yiddish proverbs
Better know a little too much than too little.
Norwegian proverbs
