What we know is a drop, what we don't know is an ocean.
No man's knowledge here can go beyond his experience.
Reading without reflecting is like eating without digesting.
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.
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.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
Common sense is the collection of prejudices acquired by age eighteen.
I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
Most people have never learned that one of the main aims in life is to enjoy it.
Knowing others is wisdom, knowing yourself is Enlightenment.
Courage, conviction and confidence.
Any sufficiently advanced technology is indistinguishable from magic.
The most savage controversies are those about matters as to which there is no good evidence either way.
I am indebted to my father for living, but to my teacher for living well.
One test of the correctness of educational procedure is the happiness of the child.
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.
The man who does not read good books has no advantage over the man who can't read them.
Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.
A cynic is a man who knows the price of everything, and the value of nothing.
To educate a person in the mind but not in morals is to educate a menace to society.