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

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

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.

The greatest sin is judgment without knowledge.

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

Most North Americans know that human-caused global warming is real even if political leaders don't always reflect or act on that knowledge.

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

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.

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.