Each entry is written and maintained by an expert in the field, including professors from many academic institutions worldwide.
Ancient philosophy : from 600 BCE to 500 CE / edited by Brian Duignan.
The Cambridge Dictionary of Philosophy by 
Encyclopedia of Philosophy
Medieval philosophy : from 500 to 1500 ce / edited by Brian Duignan.
Modern philosophy : from 1500 CE to the present / edited by Brian Duignan.
The Oxford companion to philosophy [electronic resource] / edited by Ted Honderich. by 
The philosophy book [electronic resource] / [contributors, Will Buckingham ... [et al.]].
Routledge Companion to Philosophy of Religion by Philosophy B
Philosophy History. B72
--Socrates. B317
--Plato. B395
--Aristotle. B485
--Augustine, Saint, Bishop of Hippo. BR1720
--Thomas, Aquinas, Saint, 1225?-1274. B765
--Hobbes, Thomas, 1588-1679. JC153
--Locke, John, 1632-1704. B1297
--Hume, David, 1711-1776. B1498
--Kant, Immanuel, 1724-1804. B2779
--Nietzsche, Friedrich Wilhelm, 1844-1900. B3312
Speculative Philosophy BD
--Metaphysics BD 931
--Epistemology BD 143-236
--Ontology. BD 300-450
--Cosmology. BD 493-701
Aesthetics. BH
"He is no fool who gives what he cannot keep to gain what he cannot lose." - Jim Elliot
An unexamined life is not worth living. –Socrates
"Life is like a box of chocolates, you never know what you're gonna get." - Forrest Gump
"I think therefore I am." - Rene Descartes
"We must remember that nothing in this world really belongs to us. At best, we are merely borrowers." - Christopher Isherwood
Two roads diverged in a wood, and I - I took the one less traveled by, And that has made all the difference. – Robert Frost