Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

I learned very early the difference between knowing the name of something and knowing something.

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.

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

To educate a person in the mind but not in morals is to educate a menace to society.

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

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.

It is better to know how to learn than to know.

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.

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

Knowledge becomes evil if the aim be not virtuous.

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

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

A cynic is a man who knows the price of everything, and the value of nothing.

Don't learn to do, but learn in doing.

Better know nothing than half-know many things.

The direction in which education starts a man will determine his future in life

There is no authority who decides what is a good idea.

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

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

Never help a child with a task at which he feels he can succeed.