Every known fact in natural science was divined by the presentiment of somebody, before it was actually verified.

Ralph Waldo Emerson

Bad times have a scientific value. These are occasions a good learner would not miss.

Ralph Waldo Emerson

Men love to wonder, and that is the seed of science.

Ralph Waldo Emerson

Science does not know its debt to imagination.

Ralph Waldo Emerson

Knowledge is knowing that we cannot know.

Ralph Waldo Emerson