Time stretches like a lazy leopard when it wants to. - Stephen Baxter

In engineering, experience gained is directly proportional to the amount of equipment ruined.

Ussher’s intense and obsessive project seems very odd to the eyes of a modern scientist. After all he had deduced the age of the Earth without looking at a scrap of physical evidence—not a single rock.

We underestimated the vindictiveness of mankind. Their retrospective tribunals. Their visiting of punishments on the children of the perpetrators. They never forgave us.