magnanimity;
Maimonides Moses Moses ben Maimon or Rambam;
major premise;
major term;
Malebranche Nicolas;
Malthus Thomas Robert;
Mandelbrot Benoit;
Mandelbrot set;
Mandeville Bernard;
manichaeanism;
Mao Zedong;
map;
mapping;
Marcel Gabriel;
Marcus Aurelius;
Marcuse Herbert;
Maritain Jacques;
Markov chain;
Markov model;
Markov process;
Marsilius of Padua;
Marx Karl;
Masham Damaris Cudworth;
material cause;
material equivalence;
material implication;
materialism;
mathematical induction;
matrix;
matter;
mauvaise foi;
maxim;
maximal proof-theoretic consistent set;
maximin principle;
McCulloch-Pitts neuron;
m-consistency;
McTaggart John McTaggart Ellis;
Mead George Herbert;
mean;
meaning;
means;
mechanicism;
mechanism;
megalopsychia;
Meinong Alexius Ritter von Handschuchsheim;
meliorism;
membership;
meme;
memetic algorithm;
Memex;
memory;
Mendel Gregor;
Mendelssohn Moses;
mens;
mental content;
mentalism;
mention;
mereology;
Merleau-Ponty Maurice;
Mersenne Marin;
mesos;
message;
meta;
Metaclass;
meta-data;
metaethics;
metaheuristic;
metalanguage;
metalogic;
metanarrative;
metaphilosophy;
metaphysics;
metasyntax;
metatheorem;
method;
method of doubt;
methodology;
methods of Mill;
microcosm;
middle term;
Midgley Mary;
milesians;
Mill James;
Mill John Stuart;
mimesis;
mind;
mind-body dichotomy;
mind-body problem;
minimization;
minor premise;
minor term;
Minsky Marvin;
misericordiam argumentum ad;
modal logic;
mode;
model;
model checking;
modelling;
model theory;
moderation;
modernism;
modus ponens;
modus tollens;
molecule;
monad;
monadic predicate logic;
monism;
monoid;
monotheism;
monotonic;
monotonicity;
Montaigne Michel Eyquem de;
Montesquieu Charles-Louis de Secondat;
mood and figure;
Moore bound;
Moore George Edward;
Moore graph;
Moore's Law;
moral;
moral argument;
moral ballpark;
moral isolationism;
morality;
moral luck;
moral rights;
moral sense;
More Henry;
More Thomas;
morphe;
morphing;
mother;
multiple realisability;
multitasking;
multithreaded;
multithreading;
Murphy's Law;
mutual recursion;
mysticism;
mythos;