At each increase of knowledge as well as on the contrivance of every new tool human labour becomes abridged.

Science knows no country because knowledge belongs to humanity and is the torch which illuminates the world.

All human knowledge takes the form of interpretation.

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

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

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

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

You can do anything you think you can. This knowledge is literally the gift of the gods for through it you can solve every human problem. It should make of you an incurable optimist. It is the open door.

The Greeks possessed a knowledge of human nature we seem hardly able to attain to without passing through the strengthening hibernation of a new barbarism.

What is called an acute knowledge of human nature is mostly nothing but the observer's own weaknesses reflected back from others.