Imagination is more important than knowledge.

If the facts don't fit the theory, change the facts.

A child miseducated is a child lost.

It is beyond a doubt that all our knowledge begins with experience.

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.

Patience is a virtue, and I'm learning patience. It's a tough lesson.

Books are as useful to a stupid person as a mirror is useful to a blind person.

The task of a writer is not to solve the problem but to state the problem correctly.

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

The first idea the child must acquire is that of the difference between good and evil.

Evil being the root of mystery, pain is the root of knowledge.

The knowledge of all things is possible

The real solution lies in a world in which charity will have become unnecessary.

You can never be overdressed or overeducated.

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 man who reads too much and uses his own brain too little falls into lazy habits of thinking.

When you know better you do better.

If you want the present to be different from the past, study the past.

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

Necessity is the mother of invention.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.