1. 1) I an grateful for the helpful comments from Maktoto Kogawara, Kagoshima University, on my earlier draft. And I thank Ivor Ludlam, Tel-Aviv University, for correnting my English.
2. 2) K.R. Popper, The Open Society and Its Enemies, 5th. ed., Routledge, London, 1966, Vol. II, p.231. The italics are Porrer's.
3. 3) K.R. Popper, The Open Society and Its Enemies, 5th. ed., Routledge, London, 1966, Vol. II, p.231.
4. 4) K.R. Popper, The Open Society and Its Enemies, 5th. ed., Routledge, London, 1966, Vol. II, p.232.
5. 5) K.R. Popper, The Open Society and Its Enemies, 5th. ed., Routledge, London, 1966, Vol. II, I, pp.59-66.