What Plato was really asking was perhaps why a horse was a horse, and not, for example, a cross between a horse and a pig.

the very best that can happen is to have energetic opponents. The more extreme they become, the more powerful the reaction they will have to face.

Life is both sad and solemn. We are led into a wonderful world, we meet one another here, greet each other---and wander together for a brief moment. Then we lose each other and disappear as suddenly and unreasonably as we arrived.

(As human beings) We see everything everything in a glass, darkly. Sometimes we can peer through the glass and catch a glimpse of what is on the other side. If we were to polish the glass clean, we'd see much more. But then we would no longer see ourselves.

If an overgrown child draws something on a piece of paper, you can't ask the paper what the drawing is supposed to represent.

Although you may not stumble across a Martian in the garden, you might stumble across yourself. The day that happens, you'll probably also scream a little. And that'll be perfectly all right, because it's not every day you realize you're a living planet dweller on a little island in the universe.

The only thing we require to be good philosophers is the faculty of wonder.