One who accepts rationalism as a theory or system; also, disparagingly, a false reasoner. See Citation under Reasonist.

The other main school of philosophical thought. Rationalists believe that reason alone is sufficient to gain knowledge of the world. Rationalists started with Plato, and include Descartes, Leibniz and Spinoza. The current thought is that Kant collapsed the two schools of Rationalists and Empiricists into each other, destroying the distinction. I don't really agree with this, and think it still applies today, albeit perhaps to a lesser extent.

one who emphasises the role of reason in the justification of knowledge.

someone who emphasizes observable facts and excludes metaphysical speculation about origins or ultimate causes

a philosopher who believes that we can gain knowledge by the use of reason alone, without reference to the external world

a thinker who draws logical conclusions from a given premise, and who is guided by reason rather than emotion in the search for truth

One who purports that all knowledge originates with reason.

One who forms opinions by relying upon reason alone, independently of authority or of revelation: opposed to supernaturalism

Rationalists believe that reason alone is sufficient to gain knowledge of the world. Rationalists started with Plato, and include Descartes, Leibniz and Spinoza. See also: buddhiwadi, rationalism