I cannot teach anybody anything. I can only make them think
Human behavior flows from three main sources: desire, emotion, and knowledge
Dare to think for yourself.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
It is beyond a doubt that all our knowledge begins with experience.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
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.
Better know nothing than half-know many things.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
A cynic is a man who knows the price of everything, and the value of nothing.
I am a part of everything that I have read.
The whole of science is nothing more than a refinement of everyday thinking.
The most important part of teaching is to teach what it is to know.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
Science is what we have learned about how to keep from fooling ourselves.
The direction in which education starts a man will determine his future in life
Opinion is the medium between knowledge and ignorance.
There is no authority who decides what is a good idea.
My weapon is literature
I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.