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.

Knowledge, Action, Devotion are complementary to each other.

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

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

What we know is a drop, what we don't know is an ocean.

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.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.

I think that kids have a greater capacity for processing things than we give them credit for.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

The ability to observe without evaluating is the highest form of intelligence.

Knowing others is wisdom, knowing yourself is Enlightenment.

What sculpture is to a block of marble, education is to a human soul.

Real learning comes about when the competitive spirit has ceased.

Education is our passport to the future, for tomorrow belongs to the people who prepare for it today.

A child miseducated is a child lost.

Necessity is the mother of invention.

In order to stave off covetouness, greed, and spite, citizens world over must be educated.

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

Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

Opinion is the medium between knowledge and ignorance.