No power and no treasure can outweigh the extension of our knowledge.
Books are for people who wish they were somewhere else.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
Make it a rule never to give a child a book you would not read yourself.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Don't worry that children never listen to you; worry that they are always watching you.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
The most savage controversies are those about matters as to which there is no good evidence either way.
Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.
Just when I thought there wasn't room enough for another thought in my head, I had this great idea.
Knowing others is wisdom, knowing yourself is Enlightenment.
Study without desire spoils the memory, and it retains nothing that it takes in.
Real knowledge is to know the extent of one's ignorance.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.
It is better to know how to learn than to know.
When you know better you do better.
Education is an admirable thing, but it is well to remember from time to time that nothing that is worth knowing can be taught.
Men are born ignorant, not stupid. They are made stupid by education.
In mathematics you don't understand things. You just get used to them.
Physics is like sex: sure, it may give some practical results, but that's not why we do it.