The only good human being is a dead one.
You can love a person dear to you with a human love, but an enemy can only be loved with divine love.
When a human soul draws its first furrow straight, the rest will follow surely.
We’re all human, aren’t we? Every human life is worth the same, and worth saving.
We may brave human laws, but we cannot resist natural ones.
We are healthy only to the extent that our ideas are humane.[Kilgore Trout’s epitaph]
This inhuman place makes human monsters.[repeated often in the rest of the book]
There is a passion for hunting something deeply implanted in the human breast.
The world wasn’t built for humans, we were built for the world.
The most merciful thing in the world, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far.
The most despicable humans are the ones who always feel virtuous and look down on the rest of the world.
The human soul has still greater need of the ideal than of the real. It is by the real that we exist; it is by the ideal that we live.