Platonic tradition Aristotle (in his book on the heavens?) said 3 was a special number, and not in an aesthetic sense, but objectively. Hegel answered him: "We may, of course, be prompted at first to connect the most general determinations of thought with the first numbers, and say therefore that 1 is what is simple and immediate, two a distinction and mediation, and three the unity of both. But these combinations are completely external, and there is nothing in these numbers as such to make them the expression of precisely these determinate thoughts."