Don't worry that children never listen to you; worry that they are always watching you.

If there were no bad people, there would be no good lawyers.

It is beyond a doubt that all our knowledge begins with experience.

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

Learning gives creativity, Creativity leads to thinking, Thinking provides knowledge, Knowledge makes you great.

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

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

A thought is an idea in transit.

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

There is nothing more awful, insulting, and depressing than banality.

Make it a rule never to give a child a book you would not read yourself.

Reading without reflecting is like eating without digesting.

Investigate, educate and organize.

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

When I am attacked by gloomy thoughts, nothing helps me so much as running to my books. They quickly absorb me and banish the clouds from my mind.

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

He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.

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

The real solution lies in a world in which charity will have become unnecessary.

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

Free the child's potential, and you will transform him into the world.