In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it does not speak about reality.

True ignorance is not the absence of knowledge, but the refusal to acquire it.

The growth of knowledge depends entirely upon disagreement.

The question is not how to get good people to rule; THE QUESTION IS: HOW TO STOP THE POWERFUL from doing as much damage as they can to us.

If you can't say it simply and clearly, keep quiet, and keep working on it till you can.

The best thing that can happen to a human being us to find a problem, to fall in love with that problem, and to live trying to solve that problem, unless another problem even more lovable appears.

Ignorance is not a simple lack of knowledge but an active aversion to knowledge, the refusal to know, issuing from cowardice, pride, or laziness of mind.

A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.

I may be wrong and you may be right, and by an effort, we may get nearer to the truth

The attempt to make heaven on earth invariably produces hell.

Evolution is not a fact. Evolution doesn't even qualify as a theory or as a hypothesis. It is a metaphysical research program, and it is not really testable science.

God really performs the miracle of multiplying our time, but only if we give it to him first.

It's cool to know I thought a book into existence.

In so complex a thing as human nature, we must consider, it is hard to find rules without exception.

Time has no independent existence apart from the order of events by which we measure it.

Pink champagne -- that's the kind of life we've both been used to. It might be a little difficult to -- do you like beer?

If God, like a father, denies us what we want now it is in order to give us some far better thing later on. The will of God, we can rest assured, is invariably a better thing.

None of this has ever been or will ever be; all is an appearance, all is an illusion. Illusions are truth. All illusions are real. We say illusion, meaning that they're shadows.

Donald Trump has made it clear that certainly over the last few years that President [Barack] Obama was born in Hawaii.

What you will do matters. All you need is to do it.

First of all, a player has to know what is banned and what is not banned.