"Objectivism" is a term that describes a branch of philosophy that originated in the early nineteenth century. Gottlob Frege was the first to apply it, when he expounded an epistemological and metaphysical theory contrary to that of Immanuel Kant. Kant's rationalism attempted to reconcile the failures he perceived in realism, empiricism, and idealism and to establish a critical method of approach in the distinction between epistemology and metaphysics.

Objectivism, in this context, is an alternate name for philosophical realism, the view that there is a reality or ontological realm of objects and facts that exists independent of the mind. Stronger versions of this claim might hold that there is only one correct description of this reality. If it is true that reality is mind-independent, it is thus inclusive of objects that are unknown and not the subject of intentionality. Objectivity in referring requires a definition of truth. According to metaphysical objectivists, an object may truthfully be said to have this or that attribute, as in the statement "This object exists," whereas the statement "This object is true" or "false" is meaningless. Thus, only propositions have truth values. Essentially, the terms "objectivity" and "objectivism" are not synonymous, with objectivism being an ontological theory that incorporates a commitment to the objectivity of objects.

Plato's realism was a form of metaphysical objectivism, holding that the Ideas exist objectively and independently. Berkeley's empiricist idealism, on the other hand, could be called a subjectivism: he held that things only exist to the extent that they are perceived. Both theories claim methods of objectivity. Plato's definition of objectivity can be found in his epistemology, which takes as a model mathematics, and his metaphysics, where knowledge of the ontological status of objects and ideas is resistant to change. Plato considered knowledge of geometry as a condition of philosophical knowledge, both being concerned with universal truths. Plato's opposition between objective knowledge and "doxa" (opinions) would become the basis for later philosophies intent on resolving the problem of reality, knowledge and human existence. Personal opinions belong to the changing sphere of the sensible, opposed to a fixed and eternal incorporeal realm which is mutually intelligible. Where Plato distinguishes between what and how we know things (epistemology) and their ontological status as things (metaphysics), subjectivism such as Berkeley's and a mind dependence of knowledge and reality fails to make the distinction between what one knows and what is to be known, or in the least explains the distinction superficially. In Platonic terms, a criticism of subjectivism is that it is difficult to distinguish between knowledge, "doxa", and subjective knowledge (true belief), distinctions which Plato makes.

The importance of perception in evaluating and understanding objective reality is debated. Realists argue that perception is key in directly observing objective reality, while instrumentalists hold that perception is not necessarily useful in directly observing objective reality, but is useful in interpreting and predicting reality. The concepts that encompasses these ideas are important in the philosophy of science.

Objectivism वस्तुनिष्ठता
नैतिक वस्तुनिष्ठता Ethical objectivism
Ethical subjectivism
The scientific virtues वैज्ञानिक तत्वे