Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

The ability to perceive or think differently is more important than the knowledge gained.

Knowledge is not a passion from without the mind, but an active exertion of the inward strength, vigor and power of the mind, displaying itself from within.

I'm hungry for knowledge. The whole thing is to learn every day, to get brighter and brighter. That's what this world is about. You look at someone like Gandhi, and he glowed. Martin Luther King glowed. Muhammad Ali glows. I think that's from being bright all the time, and trying to be brighter.

Never stop learning knowledge doubles every fourteen months.