I do not know how to teach philosophy without becoming a disturber of the peace.
That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
Science is a way of thinking much more than it is a body of knowledge.
Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.
Knowledge becomes evil if the aim be not virtuous.
The direction in which education starts a man will determine his future in life
Science is not only a disciple of reason but, also, one of romance and passion.
Opinion is the medium between knowledge and ignorance.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
It is possible to fly without motors, but not without knowledge and skill.
If you want the present to be different from the past, study the past.
I like poems you can tack all over with a hammer and there are no hollow places.
Human behavior flows from three main sources: desire, emotion, and knowledge
Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.
There is nothing more awful, insulting, and depressing than banality.
An investment in knowledge pays the best interest.
Don't worry that children never listen to you; worry that they are always watching you.
The man who is fond of books is usually a man of lofty thought, and elevated opinions.
One test of the correctness of educational procedure is the happiness of the child.
We could never learn to be brave and patient, if there were only joy in the world