Strabo and Diodorus Siculus never saw Pytheas ' work , says Nansen , but they and others read of him in Timaeus .
The explorer Fridtjof Nansen explains this apparent fantasy of Pytheas as a mistake of Timaeus .
Strabo and Diodorus Siculus never saw Pytheas ' work , says Fridtjof Nansen , but Pytheas and others read of him in Timaeus .
The explorer Fridtjof Nansen explains this apparent fantasy of Pytheas as a mistake of Timaeus .