Books won't stay banned. They won't burn. Ideas won't go to jail. In the long run of history, the censor and the inquisitor have always lost. The only sure weapon against bad ideas is better ideas.

Don't worry about people stealing an idea. If it's original, you will have to ram it down their throats.

There's no flesh or blood within this cloak to kill. There's only an idea. Ideas are bulletproof. Farewell.

Ideas, unlike solid structures, do not perish. They remain immortal, immaterial and everywhere, like all Divine things. Ideas are a golden, savage landscape that we wander unaware, without a map. Be careful: in the last analysis, reality may be exactly what we think it is.

Beneath this mask there is more than flesh. Beneath this mask there is an idea, Mr. Creedy, and ideas are bulletproof.

One thing I learnt was never to hoard ideas because either they are not so relevant or they've gone stale. Whatever it is, pour them out.