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A great many things which in times of lesser knowledge we imagined to be superstitious or useless, prove today on examination to have been of immense value to mankind.

If we had failed to pursue the facts as far as they led, we would have denied the public any knowledge of an unprecedented scheme of political surveillance and sabotage.

There can be no knowledge without emotion. We may be aware of a truth, yet until we have felt its force, it is not ours. To the cognition of the brain must be added the experience of the soul.

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

Most North Americans know that human-caused global warming is real, even if political leaders do not always reflect or act on that knowledge.

Knowledge is what we get when an observer, preferably a scientifically trained observer, provides us with a copy of reality that we can all recognize.

This means that no single logic is strong enough to support the total construction of human knowledge.

The greatest sin is judgment without knowledge.

Knowledge of human nature is the beginning and end of political education.

Wild Bill was anything but a quarrelsome man yet I have personal knowledge of at least half a dozen men whom he had at various times killed.

Fullness of knowledge always means some understanding of the depths of our ignorance and that is always conducive to humility and reverence.

It would be great to be able to pass on to someone all of the successes, the failures, and the knowledge that one has had. To help someone, avoid all the fire, pain and anxiety would be wonderful.

If they exert it not for good, they will for evil if they advance not knowledge, they will perpetuate ignorance.

It takes a couple of years just to get the background and knowledge that you need before you can go into detailed training for your mission.

Faulkner is a writer who has had much to do with my soul, but Hemingway is the one who had the most to do with my craft - not simply for his books, but for his astounding knowledge of the aspect of craftsmanship in the science of writing.

Hackers are breaking the systems for profit. Before, it was about intellectual curiosity and pursuit of knowledge and thrill, and now hacking is big business.

Although your knowledge is weak and small, you need not be silent: since you cannot be judges be at least witnesses.

The science of politics is the one science that is deposited by the streams of history, like the grains of gold in the sand of a river and the knowledge of the past, the record of truths revealed by experience, is eminently practical, as an instrument of action and a power that goes to making the future.

Human knowledge has been changing from the word go and people in certain respects behave more rationally than they did when they did not have it. They spend less time doing rain dances and more time seeding clouds.

The most wonderful study of mankind is man. Relieving human suffering and diffusing universal knowledge is humanitarian.