The epoch of Greek and Latin philosophy was based on ''being'' in a quite precise sense: the existence exercised by things independently of human apprehension and attitude. The much briefer epoch of modern philosophy based itself rather on the instruments of human knowing, but in a way that unnecessarily compromised being. As the 20th century ends, there is reason to believe that a new philosophical epoch is dawning along with the new century, promising to be the richest epoch yet for human understanding. The postmodern era is positioned to synthesize at a higher level—the level of experience, where the being of things and the activity of the finite knower compenetrate one another and provide the materials whence can be derived knowledge of nature and knowledge of culture in their full symbiosis—the achievements of the ancients and the moderns in a way that gives full credit to the preoccupations of both. The postmodern era has for its distinctive task in philosophy the exploration of a new path, no longer the ancient way of things nor the modern way of ideas, but the way of signs, whereby the peaks and valleys of ancient and modern thought alike can be surveyed and cultivated by a generation which has yet further peaks to climb and valleys to find.〔John Deely, "Philosophy and Experience," ''American Catholic Philosophical Quarterly'' LXVI.4 (Winter 1992), 299–319, esp. 314–15.〕