1623 in philosophy

	… 1613; 1614; 1615; 1616; 1617; 1618; 1619; ; 1620; 1621; 1622; 1623; 1624; 1625; 1626; ; 1627; 1628; 1629; 1630; 1631; 1632; 1633 …;
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1623 in philosophy