Scientific method
Wikipedia, the free encyclopedia.
The scientific method is the term usually used to refer to either a series, or a collection, of processes that are considered characteristic of scientific investigation and of the acquisition of new scientific knowledge.

The Nature and Philosophy of Science
Wade A. Tisthammer
Science is a project whose goal is to obtain knowledge of the natural world. The philosophy of science is a discipline that deals with the system of science itself. It examines science’s structure, components, techniques, assumptions, limitations, and so forth. R

The Role of Doubt in Science
Richard P. Feynman
We have found it of paramount importance that in order to progress we must recognize the ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty -- some most unsure, some nearly sure, none absolutely certain. R

Thomas Kuhn
Overview of Kuhn's ideas. R

What is science? Some viewpoints from the perspective of the theory of science
Sune Nordwall
If you want to understand, if you want to come to a picture of what science is, what knowledge is, it could be a good start to try to become clear about the general content of the concept.

Wikipedia: Philosophy of science
Wikipedia, the Free Encyclopedia
The philosophy of science is the branch of philosophy which studies the philosophical foundations, presumptions and implications of science both of the natural sciences like physics and biology and the social sciences such as psychology and economics.

Wikipedia: Science
Wikipedia, the Free Encyclopedia
Science is both a process of gaining knowledge, and the knowledge gained by this process. The scientific process is the systematic acquisition of new knowledge about a system. This systematic acquisition is generally the scientific method, and the system is generally nature. Science is also the scientific knowledge that has been systematically acquired by this scientific process.

Wikipedia: Scientific method
Wikipedia, the Free Encyclopedia
The scientific method is a sequence or collection of procedures that are considered characteristic of scientific investigation and the acquisition of new scientific knowledge based upon physical evidence. This method is believed to distinguish science from other intellectual traditions, such as painting, philosophy or theology.