The professed function of the nuclear weapons on each side is to prevent the other side from using their nuclear weapons. If that's all it is, then we've gotta as: how many nuclear weapons do you need to do that?
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.
No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.
The universe is not required to be in perfect harmony with human ambition.