Necessity is the mother of invention.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
Human behavior flows from three main sources: desire, emotion, and knowledge
Science is a way of thinking much more than it is a body of knowledge.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all.
The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
When you know better you do better.
If there were no bad people, there would be no good lawyers.
I decided to teach because I think that any person who studies philosophy has to be involved actively.
What is now proved was once only imagined.
Suddenly degrees aren't worth anything. Isn't that true? When I was a student, if you had a degree, you had a job. If you didn't have a job it's because you didn't want one. And I didn't want one, frankly.
I am a part of everything that I have read.
Books are as useful to a stupid person as a mirror is useful to a blind person.
Reading is to the mind what exercise is to the body.
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.
Educate the children and it won't be necessary to punish the men.
The highest result of education is tolerance.
Show me a family of readers, and I will show you the people who move the world.
Education is the most powerful weapon which you can use to change the world.
An investment in knowledge pays the best interest.
Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.