Know what you are talking about.
If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
If the facts don't fit the theory, change the facts.
The progressive development of man is vitally dependent on invention.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Study without desire spoils the memory, and it retains nothing that it takes in.
Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.
Better know nothing than half-know many things.
The task of a writer is not to solve the problem but to state the problem correctly.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
You can never learn less, you can only learn more.
There is no authority who decides what is a good idea.
A child educated only at school is an uneducated child.
Educate the children and it won't be necessary to punish the men.
Men are born ignorant, not stupid. They are made stupid by education.
Those who fail to learn the lessons of history are doomed to repeat them.
I am so clever that sometimes I don't understand a single word of what I am saying.