Our obsession with our differences has created the impression that the — Julian Baggini

"When you have strong desires to believe something, it is always possible to convince yourself that a decisive argument against one node wasn’t decisive after all, or that you have found a reply to it. Mending and making do can enable one to think a web of belief still holds together, even after a good critic has ripped it to shreds. But the fact that we know reason will not convince everyone is beside the point. Whether an argument is sound or whether it is persuasive are two different questions. It should come as no surprise that good rational arguments often fail to persuade people. The case for reason is not that it is always psychologically efficacious but that it genuinely helps us towards the truth. However, just as you can lead a horse to water but you cannot make it drink, so you can lead a mind to reason but you cannot make it think."

"This point is, in essence, the most important and overlooked one regarding the rationality of ethics. The traditional dispute between Kantians and sentimentalists rests on an assumption that to be rational, morality must be grounded on a priori principles of disinterested reason. This is false. If we understand what rationality means in an appropriately catholic way, we see that it it is a matter of providing reasons for belief and that the sources of these reasons are not confined to a priori principles of logical or scientific facts. Once we accept that, we can see that although the Kantian project of founding ethics on pure reason is doomed, reason is still at the very heart of morality."

"Really good philosophising requires something more than a razor-sharp brain, something that is sometimes called subtlety of mind, a philosophical sensibility or insight. I call it judgement, which I define somewhat cumbersomely as as a cognitive faculty required to reach conclusions or form theories, the truth or falsity of which cannot be determined by an appeal to facts and/or logic alone. There are numerous examples of this, but perhaps the clearest comes from moral philosophy."

"That is why there can be no one account that is ‘the truth’, not because ‘truth’ is beyond us. We need to distinguish between an account which is ‘the truth’ and one which is ‘truthful’. If by ‘the truth’ of a life we mean the one, true, complete account of it, then no such truths can be told. But we can tell more or less truthful stories about our lives and those of others: ones that do not gloss over embarrassing facts, ones that reveal many sides of a personality and not just those we wish to promote. Relating such a truthful story is not about cataloguing the largest possible number of true facts about a person. That is why our commitment to truth and rationality requires that our conceptual maps only include genuine features of what we are mapping and do not leave out anything that a user of that map might reasonably be expected to find useful. But the idea that we can come up with any kind of conceptual map that does not reflect our values and interests is a mirage. Philosophical autobiography helps us to see that behind all reasoning is a reasoner who can never drain away all her individuality."

"Many are now skeptical of Freud’s theory – and of psychoanalysis in general – but the broad idea that the unconscious is in the driving seat has become widely accepted and has been given empirical support by contemporary research in psychology. Experimental psychologists might be less convinced by the primacy of Freud’s eros and thanatos – the sex and death drives – but they have catalogued a large number of biases and distortions of thought that affect each and every one of us. They may have abandoned Freud’s specific ideas but they have only added to the general picture of human nature he painted in which we are not so much rational as rationalisers, using reason to make sense of our beliefs and actions after the event. Must we therefore accept that reason is a mere veneer for irrational impulses, or can can psychology justify giving rationality an important role in human thought and judgement?"

"If it seems shocking to some that scientists are not cold computers but human beings with different preferences, dispositions, skills and temperaments then they must have a very strange idea of how people think. Science is indeed a rational pursuit par excellence. But it does violence to the notion of rationality if we pretend that it is not a complicated, somewhat messy capacity."