Men of science have made abundant mistakes of every kind; their knowledge has improved only because of their gradual abandonment of ancient errors, p… - George Sarton

Ancient portraits are symbolic images without any immediate relation to the individuals represented; they are not portraits as we understand them. ...It is remarkable that philologists who are capable of carrying accuracy to the extremes in the case of words are as credulous as babies when it comes to "images," and yet an image is so full of information that ten thousands words would not add up to it.

Superstitions... are nothing but persistent errors, foolish beliefs, and irrational fears. Superstitions are infinite in number and scope... It would not do to ignore them altogether, only if we should never forget the weakness and fragility of our minds. The consciousness that superstitions are rife in our own society is a healthy shock to our self-conceit and a warning. ...it lets us judge ancient superstitions with more indulgence and with a sense of humor. We could not overlook them without falsifying the general picture nor judge them too severely without hypocrisy.

It is childish to assume that science began in Greece; the Greek "miracle" was prepared by millenia of work in Egypt, Mesopotamia and possibly in other regions. Greek science was less an invention than a revival.