Those who fail to learn the lessons of history are doomed to repeat them.

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

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

Seek knowledge from the cradle to the grave.

The only good is knowledge and the only evil is ignorance.

Knowing is not enough; we must apply. Willing is not enough; we must do.

Science is a rising force, It is creating a new world about us. It needs to be watched and pressed into service, and in any case, it would be courting disaster to ignore it.

The deepest sin against the human mind is to believe things without evidence.

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

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.

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

Dare to think for yourself.

I prefer the company of peasants because they have not been educated sufficiently to reason incorrectly.

If I have seen further it is by standing on the shoulders of Giants.

Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

Books are for people who wish they were somewhere else.

The most savage controversies are those about matters as to which there is no good evidence either way.

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

Civilization is a race between disaster and education.

Investigate, educate and organize.