Rationality Quotes Thread February 2015

Vaniver

Another month, another rationality quotes thread. The 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Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson.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.
Provide sufficient information (URL, title, date, page number, etc.) to enable a reader to find the place where you read the quote, or its original source if available. Do not quote with only a name.

Another month, another rationality quotes thread. The 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Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson.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.
Provide sufficient information (URL, title, date, page number, etc.) to enable a reader to find the place where you read the quote, or its original source if available. Do not quote with only a name.

our ancestors' beliefs interacted with evolution by way of predictions (conscious or unconscious) and not by truth directly

I don't understand what this means.

this need have nothing to do with moral truth

Is this quote talking about morality and moral "truth"? That's not how I read it -- if it does, it needs more context.

I don't understand

Evolution determines gene survival by (to use a hypothetical example) whether or not you can throw a spear, rather than whether or not you have an accurate picture of the the underlying physics.

Is this quote talking about morality and moral "truth"?

Beats me, I just read the title underneath.

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