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

It isn't what we don't know that gives us trouble, it's what we know that ain't so.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

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

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

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

Dare to think for yourself.

A child miseducated is a child lost.

The knowledge of all things is possible

As we acquire more knowledge, things do not become more comprehensible but more mysterious.

Education is an ornament for the prosperous, a refuge for the unfortunate.

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.

I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion

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

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

The fullness of knowledge only comes through the awareness of ignorance.

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

There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.

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

The schools ain't what they used to be and never was.

Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.