Timaeus (/taɪˈmiːəs/; Greek: Τίμαιος, translit. Timaios, pronounced [tǐːmai̯os]) is one of Plato's dialogues, mostly in the form of long monologues given by Critias and Timaeus, written c. 360 BC. The work puts forward reasoning on the possible nature of the physical world and human beings and is followed by the dialogue Critias.