Trust not yourself, but your defects to know, make use of every friend and every foe.

In vertebrate paleontology, increasing knowledge leads to triumphant loss of clarity.

If you understand physics of how a locomotive works, that knowledge is irreplaceable.

Loneliness is not cured by human company. Loneliness is cured by contact with reality.

Mediocrity has no greater consolation than in the thought that genius is not immortal.

All teaching and all intellectual learning come about from already existing knowledge.

A humble knowledge of thyself is a surer way to God than a deep search after learning.

All things I thought I knew; but now confess The more I know, I know, I know the less.

The greatest obstacle to discovery is not ignorance - it is the illusion of knowledge.

There is very little difference between one who cannot read and one who will not read.

One of the pleasures of reading old letters is the knowledge that they need no answer.

Without devotion, action and knowledge are cold and dry and many even become shackles.

I'm really interested in the intersection between reputation, identity, and knowledge.

True knowledge is not attained by thinking. It is what you are; it is what you become.

Nothing is really small; whoever is open to the deep penetration of nature knows this.

It is the province of knowledge to speak, and it is the privilege of wisdom to listen.

In America we can say what we think, and even if we can't think, we can say it anyhow.

A physician without a knowledge of Astrology has no right to call himself a physician.

The small part of ignorance that we arrange and classify we give the name of knowledge.

The color of the object illuminated partakes of the color of that which illuminates it.

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

In an examination those who do not wish to know ask questions of those who cannot tell.

For we can only know that we know nothing, and a little knowledge is a dangerous thing.

Merely quantitative differences, beyond a certain point, pass into qualitative changes.

Knowledge is like underwear. It is useful to have it, but not necessary to show it off.

He that has sense knows that learning is not knowledge, but rather the art of using it.

Knowledge is more than equivalent to force. The master of mechanics laughs at strength.

What is all our knowledge worth? We do not even know what the weather will be tomorrow.

Many a man who has known himself at ten forgets himself utterly between ten and thirty.

I think that only daring speculation can lead us further and not accumulation of facts.

The worth and value of knowledge is in proportion to the worth and value of its object.

The principle is so perfectly general that no particular application of it is possible.

If no one is pissed-off with you then you are dead but just haven't figured it out yet.

There are two ways of spreading light: to be the candle or the mirror that reflects it.

The world of knowledge takes a crazy turn When teachers themselves are taught to learn.

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

Between us, we cover all knowledge; he knows all that can be known and I know the rest.

Some men grow mad by studying much to know, But who grows mad by studying good to grow.

There's not an idea in our heads that has not been worn shiny by someone else's brains.

Knowledge is exploding, so you need to commit yourself to a plan for lifelong learning.

Love, work, and knowledge are the wellsprings of our lives, they should also govern it.

A man who knows how little he knows is well, a man who knows how much he knows is sick.

It is the supreme art of the teacher to awaken joy in creative expression and knowledge.

Every one is least known to himself, and it is very difficult for a man to know himself.

It is not the quantity but the quality of knowledge which determines the mind's dignity.

Many errors, of a truth, consist merely in the application of the wrong names of things.

It is sometimes important for science to know how to forget the things she is surest of.

There are a thousand hacking at the branches of evil to one who is striking at the root.

True friendship can afford true knowledge. It does not depend on darkness and ignorance.

Every branch of knowledge which a good man possesses, he may apply to some good purpose.

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