A little knowledge that acts is worth infinitely more than much knowledge that is idle.
Opinion is the medium between knowledge and ignorance.
The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.
A little knowledge is a dangerous thing. So is a lot.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Show me a family of readers, and I will show you the people who move the world.
It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.
I do not know how to teach philosophy without becoming a disturber of the peace.
Knowledge becomes evil if the aim be not virtuous.
I am a part of everything that I have read.
I learned very early the difference between knowing the name of something and knowing something.
The great difficulty in education is to get experience out of ideas.
No power and no treasure can outweigh the extension of our knowledge.
He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.
I am indebted to my father for living, but to my teacher for living well.
The progressive development of man is vitally dependent on invention.
Evil being the root of mystery, pain is the root of knowledge.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
Better know nothing than half-know many things.
The man who does not read good books has no advantage over the man who can't read them.
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.