I have never in my life learned anything from any man who agreed with me.

Cherish that which is within you, and shut off that which is without; for much knowledge is a curse.

It is one of my sources of happiness never to desire a knowledge of other people's business.

But inner experience is only one source of human knowledge.

Every addition to true knowledge is an addition to human power.

There are no shortcuts in evolution.

Knowledge is like money: to be of value it must circulate, and in circulating it can increase in quantity and, hopefully, in value.

Opinion is the medium between knowledge and ignorance.

The greater our knowledge increases the more our ignorance unfolds.

Where there is no vision, there is no hope.

Be not simply good - be good for something.

Knowledge is power. Information is power. The secreting or hoarding of knowledge or information may be an act of tyranny camouflaged as humility.

Gratitude is the fairest blossom which springs from the soul.

The true method of knowledge is experiment.

Give light and people will find the way.

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

Every addition to true knowledge is an addition to human power.

I am not afraid of tomorrow, for I have seen yesterday and I love today!

Even the knowledge of my own fallibility cannot keep me from making mistakes. Only when I fall do I get up again.

Challenging the meaning of life is the truest expression of the state of being human.

Rough diamonds may sometimes be mistaken for worthless pebbles.

There is no influence like the influence of habit.

Nothing can be done except little by little.

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

Silence is the sleep that nourishes wisdom.

Have patience. All things are difficult before they become easy.

It is harder to conceal ignorance than to acquire knowledge.

The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery.

Cherish that which is within you, and shut off that which is without; for much knowledge is a curse.

An effort made for the happiness of others lifts above ourselves.

It is amazing what you can accomplish if you do not care who gets the credit.

If you do not think about your future, you cannot have one.

Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

Knowledge is love and light and vision.

Your own mind is a sacred enclosure into which nothing harmful can enter except by your permission.

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

The best preparation for tomorrow is doing your best today.

Think in the morning. Act in the noon. Eat in the evening. Sleep in the night.

We are drowning in information but starved for knowledge.

You can't wait for inspiration. You have to go after it with a club.

Perfection itself is imperfection.

Nobody who ever gave his best regretted it.

Art resides in the quality of doing, process is not magic.

What is a soul? It's like electricity - we don't really know what it is, but it's a force that can light a room.

Either I will find a way, or I will make one.

We are here and it is now. Further than that, all human knowledge is moonshine.

Perfection is the child of time.

No matter what people tell you, words and ideas can change the world.

Our knowledge can only be finite, while our ignorance must necessarily be infinite.

Find something you're passionate about and keep tremendously interested in it.