Do not think of your faults still less of other's faults look for what is good and strong and try to imitate it. Your faults will drop off like dead leaves when their time comes.
Better the rudest work that tells a story or records a fact than the richest...
There's no regret. You can't regret. I mean I've felt regret but I've also...
Paleoanthropology is not a science that ends with the discovery of a bone. One has to have the original to work with. It is a life-long task.