This blog very frequently includes quotations. Some posts are essentially nothing but a quotation, as this one here, and others do not contain much beyond a series of long quotations, as for example this one.
Why do I use the thoughts of others rather than putting things in my own words? There are a number of reasons. It is very practical. It is much easier to compose a long blog post using quotations, while it takes a lot of time and energy to write everything yourself. And the idea of originality here is not really relevant. For as Qoheleth says, “What has been is what will be, and what has been done is what will be done; there is nothing new under the sun.” Most of the positions argued on this blog have been argued by others, and there is nothing surprising about this. In addition, insofar as a new contribution is possible, one can do this by organizing the thoughts of others, just as Socrates teaches the boy by helping him organize his thoughts.
But the most important reason is the following. Speakers and writers are addressing people, and just as beliefs have motives, so the act of speaking or writing has a motive. And whether or not people approve of doing this, the listener or the reader tends to think of these motives. As Alexander Pruss discusses in a blog post here, sometimes such considerations are necessary. Nonetheless, this can lead people away from understanding reality. If instead of thinking about what I am saying and what is true about it, someone thinks, “Why is he saying this?”, this can hinder them in their understanding of the truth of the matter.
Quotations are very helpful in reducing this effect. Since a quotation is taken out of context, it is removed from the motivation of the original speaker. Yes, there is still a motive on the part of the person who includes the quotation. But the reader who reads the quotation knows that it is not addressed to him in the manner of the original. He does not need to say, “Why is the original author saying this?”, because it does not matter in the new context. The only thing that matters is what he is saying, not why he is saying it. So it provides some impetus towards considering the truth of the matter. This remains true whether the quotation itself says something which is true, or something which is false.