Solitude is only a good idea if you have the right people along to share it.

Idiots are not responsible for what they do. The real guilt falls on rational people who sit on their hands while morons run wild. You can opt out if you want to. Play it safe. But if you do, don't complain when the roof comes down.

Lies hold civilization together. If people ever seriously begin telling each other what they really think, there'd be no peace. Good-bye to tact. Good-bye to being polite. Good-bye to showing tolerance for other people's buffooneries. The fact that we claim to admire Truth is probably the biggest lie of all. But that's part of the charade, part of what makes us human, and we do not even think about it. In effect, we lie to ourselves. Lies are only despicable when they betray a trust.

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.

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

We could never know who we truly were until we heard the whispers of the stars.

Sometimes the cost of integrity is the loss of a friend.