Certainty.

Wittgenstein's On certainty = there-- like our life / by: (Electronic resources)

The quest for reality = Bohr and Wittgenstein - two complementary views / by: (Electronic resources)

Moore and Wittgenstein = scepticism, certainty, and common sense / by: (Electronic resources)

Are you alone wise? = the search for certainty in the early modern era / by: (Electronic resources)

Philosophy, Modern.

Logical positivism.

Moore, G. E.- Principia ethica.

Philosophy, Renaissance.

Common sense.

Certainty.

Church history- Modern period, 1500-

Church history- Middle Ages, 600-1500.

Skepticism.

Wittgenstein, Ludwig,

Bohr, Niels,

Quantum theory.