Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.
Learning never exhausts the mind.
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.
Study without desire spoils the memory, and it retains nothing that it takes in.
The most savage controversies are those about matters as to which there is no good evidence either way.
Industrialize or perish.
What we know is a drop, what we don't know is an ocean.
The first idea the child must acquire is that of the difference between good and evil.
That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
In mathematics you don't understand things. You just get used to them.
Imagination is more important than knowledge.
It is beyond a doubt that all our knowledge begins with experience.
A man who has never gone to school may steal a freight car; but if he has a university education, he may steal the whole railroad.
There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
The task of a writer is not to solve the problem but to state the problem correctly.
If you want the present to be different from the past, study the past.
Never help a child with a task at which he feels he can succeed.
I am so clever that sometimes I don't understand a single word of what I am saying.
The ability to observe without evaluating is the highest form of intelligence.