Knowledge without justice ought to be called cunning rather than wisdom.

When you know a thing, to hold that you know it, and when you do not know a thing, to allow that you do not know it - this is knowledge.

Those who do not remember the past are condemned to repeat it.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

Knowledge of what is does not open the door directly to what should be.

Knowledge of what is does not open the door directly to what should be.

All great achievements require time.

What would life be if we had no courage to attempt anything?

What would life be if we had no courage to attempt anything?

To know, is to know that you know nothing. That is the meaning of true knowledge.

Action is the foundational key to all success.

Reading is to the mind what exercise is to the body.

Change your life today. Don't gamble on the future, act now, without delay.

Knowledge has to be improved, challenged and increased constantly, or it vanishes.

There is no end to education. It is not that you read a book, pass an examination, and finish with education. The whole of life, from the moment you are born to the moment you die, is a process of learning.

Human behavior flows from three main sources: desire, emotion, and knowledge.

Ignorance is the curse of God; knowledge is the wing wherewith we fly to heaven.

The will to win, the desire to succeed, the urge to reach your full potential... these are the keys that will unlock the door to personal excellence.

Knowledge is love and light and vision.

Don't watch the clock; do what it does. Keep going.

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.

Let us tenderly and kindly cherish, therefore, the means of knowledge. Let us dare to read, think, speak, and write.

“You always pass failure on the way
to success.”

Real knowledge is to know the extent of one's ignorance.

A people free to choose will always choose peace.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

Innovation distinguishes between a leader and a follower.

The minute that you're not learning I believe you're dead.

Give light, and the darkness will disappear of itself.

A positive attitude is something everyone can work on, and everyone can learn how to employ it.

Perfection is not attainable, but if we chase perfection we can catch excellence.

We are going to have peace even if we have to fight for it.

To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.

Genius always finds itself a century too early.

Human behavior flows from three main sources: desire, emotion, and knowledge.

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

Success is never final, failure is never fatal. It's courage that counts.

The true sign of intelligence is not knowledge but imagination.

You cannot open a book without learning something.

Satisfaction consists in freedom from pain, which is the positive element of life.

The difference between stupidity and genius is that genius has its limits.

Having knowledge but lacking the power to express it clearly is no better than never having any ideas at all.

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.

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

Never, never, never give up.

Knowledge is knowing that we cannot know.

Experience without theory is blind, but theory without experience is mere intellectual play.

Positive thinking will let you do everything better than negative thinking will.