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.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
Real knowledge is to know the extent of one's ignorance.
I decided to teach because I think that any person who studies philosophy has to be involved actively.
All stable processes we shall predict. All unstable processes we shall control.
Courage, conviction and confidence.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
Real learning comes about when the competitive spirit has ceased.
The great difficulty in education is to get experience out of ideas.
Don't worry that children never listen to you; worry that they are always watching you.
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.
Any sufficiently advanced technology is indistinguishable from magic.
The progressive development of man is vitally dependent on invention.
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
I am indebted to my father for living, but to my teacher for living well.
To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.
Reading is to the mind what exercise is to the body.
I cannot live without books.
Education is a human right with immense power to transform. On its foundation rest the cornerstones of freedom, democracy and sustainable human development.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
When you know better you do better.