certainty

In philosophy, certainty refers to a state of being free from doubt. Philosophers debate the complex relationship between knowledge and certainty, questioning if they are the same and whether one can exist without the other.1

Certainty can also mean the quality of being unavoidable, like the certainty of death and taxes.2

The concept of certainty is central to epistemology, the study of knowledge. Philosophers like G.E. Moore and Ludwig Wittgenstein have explored whether certainty requires knowledge, or if knowledge can exist without certainty. Skepticism challenges the possibility of attaining certainty, questioning the criteria we use to justify our beliefs. René Descartes famously sought certainty through his "I think, therefore I am" argument, aiming to establish a foundation for knowledge against skeptical doubts.134