The reactions of the human heart are not mechanical and predictable but infinitely subtle and delicate.
The very concept of history implies the scholar and the reader. Without a generation of civilized people to study history, to preserve its records, to absorb its lessons and relate them to its own problems, history, too, would lose its meaning.
It is possible that a scientific discovery will be made that humans will later regret because it has awful consequences. The problem is, we probably would not know in advance and, once the discovery is made, it cannot be undiscovered.

