Intelligence is like pornography. I can't define it, but I know if when I see it.

What would happen is that people like Geroge and Alyx would grow old and die chasing a dream. Although there were probably worse things to do with one's life.

But, come to think of it, there was no need to wait. Time travelers don't have to wait for anybody.

Show me what a people admire, and I will tell you everything about them that matters.

Of course, they (i. e., demons) had always been observed with some regularity, but that could usually be ascribed to an overabundance of piety or wine or imagination. Take your pick.

... the truth is that when your people don't tell you what you need to know, it's a failure of leadership.

All of the important things ... will turn out to be universally shared. It's why there will be no true aliens.