I decided to teach because I think that any person who studies philosophy has to be involved actively.

If you can't explain it simply, you don't understand it well enough.

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

Any sufficiently advanced technology is indistinguishable from magic.

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.

Knowing others is wisdom, knowing yourself is Enlightenment.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

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

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

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

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

The knowledge of all things is possible

What we know is a drop, what we don't know is an ocean.

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

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

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

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.

Real learning comes about when the competitive spirit has ceased.

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

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

Science is not only a disciple of reason but, also, one of romance and passion.