There is no authority who decides what is a good idea.
A cynic is a man who knows the price of everything, and the value of nothing.
Education is the most powerful weapon which you can use to change the world.
Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth.
Science is what we have learned about how to keep from fooling ourselves.
Those who fail to learn the lessons of history are doomed to repeat them.
Books are as useful to a stupid person as a mirror is useful to a blind person.
A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.
Education is an ornament for the prosperous, a refuge for the unfortunate.
Books are for people who wish they were somewhere else.
I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Science is not only a disciple of reason but, also, one of romance and passion.
The only good is knowledge and the only evil is ignorance.
When you know better you do better.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Know what you are talking about.
All stable processes we shall predict. All unstable processes we shall control.
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
The ability to observe without evaluating is the highest form of intelligence.