Rationality Quotes March 2014

Another month has passed and here is a new rationality quotes thread. The usual rules are:

Please post all quotes separately, so that they can be upvoted or downvoted separately. (If they are strongly related, reply to your own comments. If strongly ordered, then go ahead and post them together.)
Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson. If you'd like to revive an old quote from one of those sources, please do so here.
No more than 5 quotes per person per monthly thread, please.

Another month has passed and here is a new rationality quotes thread. The usual rules are:

Please post all quotes separately, so that they can be upvoted or downvoted separately. (If they are strongly related, reply to your own comments. If strongly ordered, then go ahead and post them together.)
Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson. If you'd like to revive an old quote from one of those sources, please do so here.
No more than 5 quotes per person per monthly thread, please.

We aren't trying to promote the idea that rationality is true. We are trying to promote that it is useful.

More accurately, we have defined "rational" to mean "useful", and when we argue that something is rational, we are arguing that it's useful.

If you are, you are being irresponsible because you are not checking what people are going to do with this useful thing.

0Luke_A_Somers12y

The only senses in which you wouldn't say it's true are those in which that would be a type error.

0Richard_Kennaway12y

We are trying to promote the idea that it is useful because it is true.

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