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

I cannot teach anybody anything. I can only make them think

Show me a family of readers, and I will show you the people who move the world.

It is possible to fly without motors, but not without knowledge and skill.

I like poems you can tack all over with a hammer and there are no hollow places.

Opinion is the medium between knowledge and ignorance.

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.

Intelligence plus character-that is the goal of true education.

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

All stable processes we shall predict. All unstable processes we shall control.

The man who is fond of books is usually a man of lofty thought, and elevated opinions.

The first principle is that you must not fool yourself and you are the easiest person to fool.

There is nothing more awful, insulting, and depressing than banality.

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

I don't look on poetry as closed works. I feel they're going on all the time in my head and I occasionally snip off a length.

The great difficulty in education is to get experience out of ideas.

Knowing others is wisdom, knowing yourself is Enlightenment.

Men are born ignorant, not stupid. They are made stupid by education.

You can never learn less, you can only learn more.

Science is not only a disciple of reason but, also, one of romance and passion.

To every action there is always an equal and opposite or contrary, reaction