Your time is better spent championing good ideas than tearing down bad ones.

The best thing that can happen to a bad idea is that it is forgotten. The best thing that can happen to a good idea is that it is shared.

Feed the good ideas and let bad ideas die of starvation.

For every good idea, expect to have five, ten, twenty wrong or useless ideas. You cannot avoid the bad ideas if you keep your imagination free. There is no spam filter for bad ideas.

Good ideas can go bad because they’re made for the wrong reasons. The mission isn’t the right mission. Even though all the players may be noble players, the mission itself is fundamentally flawed.

Bad ideas don’t die simply because they are intrinsically bad. You need people who will stand up and fight them, put themselves at risk, point out the weaknesses, and drive stakes through their hearts.

I dislike persons who change their basic ideas, and I dislike them when they change them for good reasons quite as much as when they change them for bad ones. A convert to a good idea is simply a man who confesses that he was formerly an ass — and is probably one still. When such a man favors me with a certificate that my eloquence has shaken him I feel about him precisely as I’d feel if he told me that he had started (or stopped) beating his wife on my recommendation.

What good is an idea if it remains an idea? Try. Experiment. Iterate. Fail. Try again. Change the world.

It's not the bad ideas that do you in, it’s the good ideas. And you may say, 'That can't be so. That's paradoxical. What he [Graham] meant was that if a thing is a bad idea, it’s hard to overdo. But where there is a good idea with a core of essential and important truth, you can’t ignore it. And then it's so easy to overdo it. So the good ideas are a wonderful way to suffer terribly if you overdo them

I was left with a great idea gutted by critical examination. But that's good. That's how we make ideas better—by trying to poke holes in them and then finding ways to fix the holes.

A decent idea now is way better than a brilliant plan when it’s too late.

A multitude of bad ideas is necessary for one good idea.

The really good idea is always traceable back quite a long way, often to a not very good idea which sparked off another idea that was only slightly better, which somebody else misunderstood in such a way that they then said something which was really rather interesting.

A good idea is something that does not solve just one single problem, but rather can solve multiple problems at once.

A good idea catches on, snowballing as it picks up adherents. Sometimes a bad idea does the same.

When you have an idea, hang on to it. It's the most valuable thing in the world. Nurture it. Test it. And remember: you can grow a toadstool overnight, but it takes time to grow an oak.