If you want the present to be different from the past, study the past.

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

Although modesty is natural to man, it is not natural to children. Modesty only begins with the knowledge of evil.

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

Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.

The progressive development of man is vitally dependent on invention.

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

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

The highest activity a human being can attain is learning for understanding, because to understand is to be free.

Just when I thought there wasn't room enough for another thought in my head, I had this great idea.

Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

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

Seek knowledge from the cradle to the grave.

Liberty without Learning is always in peril and Learning without Liberty is always in vain.

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

The only true wisdom is in knowing you know nothing.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

A little knowledge is a dangerous thing. So is a lot.

I do not know how to teach philosophy without becoming a disturber of the peace.

My alma mater was books, a good library.... I could spend the rest of my life reading, just satisfying my curiosity.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.