Babbage Charles; Bachelard Gaston; Bacon Francis; Bacon Roger; baculum argumentum ad; bad faith; Baier Annette; Baier Kurt; Bakunin Mikhail Alexandrovich; Barbara; Baroco; Bayes Thomas; Bayle Pierre; beauty; Beauvoir Simone de; bedeutung; begging the question; begriff; belief; Bentham Jeremy; Berdyaev Nicolai Alexandrovich; Bergmann Gustav; Bergson Henri; Berkeley George; Berlin Isaiah; best of all possible worlds; bewusstsein; biconditional; bivalence principle of; Blanshard Brand; Bocardo; Boethius Anicius Manlius Severinus; Boetius of Dacia; Bohr Niels Henrik David; Bolzano Bernard; Bonaventure;