Participants in the discourse present competing definitions of the concept of courage or "manliness", ἀνδρεία in Greek.
The bulk of the dialogue is then the three men (Laches, Nicias and Socrates) debating various definitions of courage.
Socrates confesses not to be skilled in this and assumes that Laches and Nicias are either versed in character building or else know of experts in that field.
Laches states that he likes to hear discussions that are "musical", when a person's discourse is in tune with their actions.
Paraphrasing Solon, Laches agrees to participate in Socrates' inquiry because he likes to learn from good men.
However, Socrates challenges this idea by arguing that there are many instances in battle when the prudent thing to do is to withdraw or flee.
Socrates states that like a good huntsman pursuing a trail, they must persevere in the search for their quarry.
Socrates then argues that full knowledge of any subject involves an understanding not only of future matters, but also of past and present.
Certain commentators, such as Iain Lane, view the Socratic method of elenchus as an end in itself; that debate is the central premise and function of the dialogue[citation needed].