B
- Bacon, Francis
- Bacon, Roger
- Bakhtin Circle
- Bayle, Pierre
- Beattie, James
- Beauvoir, Simone de
- Behaviorism
- Belief, The Aim of
- Bell Inequalities
- Benacerraf Problem of Mathematical Truth and Knowledge
- Bentham, Jeremy
- Berkeley, George
- Berlin Circle
- Bhagavad Gita
- Bhartrihari
- Bhedābheda Vedānta
- Bioethics
- Biology, Philosophy of
- Blaga, Lucian
- Blanchot, Maurice
- Blame and Praise
- Blondel, Maurice
- Bodily Awareness
- Bodin, Jean
- Boethius
- Bolzano: Mathematical Knowledge
- Bonaventure
- Bonhoeffer, Dietrich
- Boredom
- Boyle, Robert
- Bradley, F. H.
- Brain-in-a-Vat Argument
- British Empiricism
- Bruno, Giordano
- Buber, Martin
- Buddha
- Buddhism – Madhyamaka
- Buddhism – Pudgalavāda
- Burge, Tyler
- Butler, Joseph
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