Among the truth-conducive tools of thought used by objective thinkers are the scientific virtues. When formulating a hypothesis to explain a particular fact, the explainer makes sure that his or her hypothesis is the simplest one on offer (Principle of Parsimony), that it is adequate to all known evidence, that it can predict as diverse an array of phenomena as possible, and that it is fruitfully "risky," according to Popperians, but more generally, that it can be verified by new or as yet unperformed experiments or observations.

The scientific virtue known as simplicity or parsimony has also come to be known as "Ockham’s Razor" because of its frequent use by the fourteenth century philosopher William of Ockham, whose primary statement of the principle in his nominalist epistemology is that in accounting for the facts nothing should be assumed as necessary unless it is established through evidentiary experience or reasoning, or is required by the articles of faith.

नैतिकतेतील वस्तुनिष्ठता Objectivity in ethics
Ethical subjectivism
The scientific virtues वैज्ञानिक तत्वे
Objectivism वस्तुनिष्ठता